Category: Kitchen Baiting

Is Your Roach Treatment Working: Signs of Progress and Stalling

Baiting is uncomfortable precisely because nothing appears to happen at first. There is no satisfying instant result to confirm you did it right, so the temptation is to change tactics on day three, spray over the top, or move everything around. Almost every one of those interventions makes the outcome worse. This is how to read the evidence properly, so you know whether to hold your nerve or actually change something. Our breakdown of realistic roach treatment timelines shows what progress should look like week by week.

The four signals that matter

Live sightings are the worst indicator of progress, because they are driven by when you happen to walk into a room. These four are far more reliable.

Signal	What to look for	What it tells you
Fresh droppings	New dark specks in a treated void since you last wiped it	The most direct measure of current activity
Dead insects in the open	Bodies on floors and worktops, often on their backs	Uptake is happening and the product is moving
Trap catch rate	Catches per trap per night, same traps, same spots	A comparable number over time
Nymph proportion	Ratio of small pale insects to adults	Tells you whether breeding is continuing

The trick with droppings is to create a clean baseline. Wipe one small marked patch inside each treated void, note the date, and check it every few days. Anything new on that patch is current activity. Without a baseline you are looking at a mixture of old and new evidence and guessing. The droppings guide covers identification and safe cleaning.

What normal progress looks like, week by week

Days 1–3: no visible improvement, and possibly more sightings than before. Insects move erratically and in the open while affected. This is a good sign misread as a bad one.
Days 4–10: dead insects appearing where you can see them. Fresh droppings on your marked patches start to thin. Trap catches begin to fall.
Week 2: clearly fewer live insects. Adults becoming rare, nymphs still present.
Week 3: substantially quieter, and often a second small wave as egg cases laid before treatment hatch.
Weeks 4–6: after the top-up round, marked patches staying clean and traps catching nothing for several consecutive nights.

The reasoning behind those intervals is set out in the week-by-week timeline. If a second wave arrives on schedule, that is biology rather than failure — the egg case guide explains why.

Signs it is genuinely stalling

There is a real difference between slow and stuck. Treat these as evidence that something needs to change, not just more time.

Fresh droppings on your marked patches at day 14 at the same rate as day one, in the same voids.
Trap catches flat or rising at day 14 with the same traps in the same positions.
No dead insects anywhere after ten days. Uptake produces visible casualties; a complete absence suggests they are not encountering the placements.
Activity has moved to a new room and is now higher there than it ever was in the treated area.
Placements look untouched in every location while activity continues nearby.

Diagnosing a stall

Work through these in order — they are ranked by how often they turn out to be the answer.

Check	Likely problem	Fix
Are placements inside the void or near it?	Sited in the open, not in the harbourage	Move to the rear of cavities and appliance voids
Is there a drip, condensation or standing water?	Water outcompetes treatment	Fix the leak, dry the sink nightly
Have you sprayed anywhere nearby?	Repellent residue suppressing uptake	Stop spraying, clean the area, re-place
Is open food still available?	Bait competing with a better meal	Seal dry goods, lift pet bowls, empty bins nightly
Did you treat every room?	Harbourage in an untreated area	Trap survey in all rooms, widen the map
Did you run out mid-round?	Incomplete coverage	Complete the round properly — see the coverage math
Shared walls or risers?	External supply line	Seal penetrations, escalate to the building

The two most common answers by a wide margin are “the placements are not actually in the void” and “there is water nearby”. Both are fixable in an afternoon. If you sprayed before baiting, that is a third very common cause, explained in the comparison of powder, spray and foggers.

Wider reading: the complete Roach Control Guide maps every article on the site by the question you are trying to answer — first 48 hours, identification, method, room by room, comparisons, safety, rentals and local conditions.

Using RoachBuster for this? If a stall traces back to incomplete coverage, finishing the round properly is what changes the curve. A single box is $47 with 50 odorless, stainless dry powder sachets, free shipping, and a 30-day money-back guarantee. See the box and bundles.

Always use as directed on the product label, and keep placements away from children and pets.

A simple monitoring routine

Ten minutes a week is enough to know exactly where you stand.

Number your traps and write the position of each one on a sheet.
Every three days, record catches per trap and whether each marked dropping patch is clean or dirty.
Photograph anything ambiguous so you can compare rather than remember.
Plot the total catch figure. A falling line is progress regardless of how many you saw last night.
At day 14 and day 21, decide: hold, top up, or widen. Do not decide on any other day.

That last rule matters more than it sounds. Most treatments that fail do so because someone intervened on day four. Fixing decision points to day 14 and day 21 removes the panic response from the process.

What “finished” actually looks like

You can consider a round complete when all of the following hold for two consecutive weeks: no fresh droppings on any marked patch, no trap catches, no live sightings including after dark with a torch, and no musty smell in previously affected voids. At that point shift from treating to preventing — seal gaps, keep placements at shared-wall penetrations, and keep the water and food discipline. The guide to reinfestation covers the mistakes that undo a finished job.

Frequently asked questions

I saw more roaches after treating. Is that bad?

In the first few days, usually not. Affected insects move more and hide less, so they become visible. A sustained increase after two weeks is a different matter.

Should I clean out the void where I see droppings?

Wipe a small marked patch to create a baseline, but do not deep-clean the void or remove the placement. You need the evidence and the treatment in place.

How many traps do I need to monitor properly?

One per treated area is enough, provided you keep them in the same positions. Consistency matters far more than quantity.

Is it worth switching products at day seven?

Almost never. Day seven is inside the normal window where progress is real but modest. Switching resets the clock and often introduces a repellent that makes things worse.

What if only nymphs are left?

That usually means the adult population has dropped and you are seeing the hatch cohort. Keep placements active and expect it to resolve over the following two to three weeks.

The short version

Judge progress on fresh droppings against a marked baseline, dead insects in the open, and trap catch rate — not on last night’s sighting. Expect nothing for three days, clear movement by day ten, and a second wave around week three. Only make decisions at day 14 and day 21. If it has genuinely stalled, check placement siting and water first, then spray residue, then coverage. Always use as directed on the product label, and keep placements away from children and pets.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
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August 4, 2026

Roach Emergency Plan: What to Do in the First 48 Hours

You have just found roaches and you want to know what to do tonight, not next month. The first 48 hours matter more than most people realise, because the decisions you make now either set up a clean treatment or create the exact conditions that make one fail. This is a straight sequence: what to do in the first hour, tonight, tomorrow, and by the end of day two. Our breakdown of realistic roach treatment timelines shows what progress should look like week by week.

Hour one: contain, do not panic-spray

The instinct is to reach for the strongest aerosol in the cupboard and empty it. Resist it. Contact sprays kill the insects you can see and scatter the ones you cannot, and any repellent residue you leave behind will suppress bait uptake in exactly the area you most need it to work. You will spend the next three weeks paying for a satisfying ten seconds.

Do this instead, in the first hour:

Remove the food. Bag anything open on the worktop. Move cereal, rice, pasta, flour, pet food and sugar into sealed containers or the fridge.
Empty the bin and take it out of the building. Rinse the bin itself.
Clear the sink completely. No dishes standing in water overnight. Wipe the basin dry and put the plug in.
Look for water. Under the sink, behind the toilet, under the washing machine, around the fridge. A slow drip will outcompete any treatment you apply.
Do not clean the voids yet. The droppings inside cabinets are evidence you will need in the next step. Leave them for now.

Tonight: find out where they actually live

Roaches are active in the dark. Tonight is the single best information-gathering window you will get, and it costs almost nothing.

Wait until two or three hours after the lights go off, then walk the home with a torch and check, in this order: under the kitchen sink, behind and under the fridge, the gap beside the dishwasher, the oven kick plate, the bathroom vanity, behind the toilet, the washing machine plinth, and any cupboard containing a boiler, meter or riser access panel.

Note what you find in each place: live insects, shed skins, dark peppercorn-like speckling, or a faint musty smell. If you can identify what you are dealing with, the treatment gets more precise — the difference between German and American cockroaches changes where you should be looking, and small pale insects are usually nymphs rather than a different species, which the droppings identification guide helps confirm.

If you see roaches out in daylight, treat that as a signal about population density rather than a curiosity. The guide to daytime sightings explains what it usually indicates.

Also tonight: set traps, not treatments

Put a sticky trap flat against the wall in each suspect location. Two nights of trap data will tell you which rooms are genuinely in use and which are just where you happened to see something. This is the step that stops you from treating the kitchen only and wondering why the problem returns in week three. The trap mapping method covers placement and how to read the results.

Day two, morning: build the placement list

Walk the home with the trap results and write down every cavity you can reach — each cabinet carcass, each appliance void, each plumbing chase, each plinth. Count cavities, not rooms. That count is your first-round quantity, and getting it right now is what prevents running out halfway. The room-by-room coverage math gives working numbers for studios through to three-bed houses.

Priority	Where	Why it comes first
1	Under-sink cabinet	Water plus darkness plus undisturbed space
2	Behind and under the fridge	Warm, dry, never cleaned
3	Dishwasher and washer voids	Moisture and a sealed cavity
4	Kitchen base cabinet rear corners	Main foraging route
5	Bathroom vanity and pipe collars	The harbourage people forget
6	Riser, meter and boiler cupboards	Where building-wide traffic enters

Using RoachBuster for this? Sachets go into the voids on that priority list, starting with the wettest and darkest. A single box is $47 with 50 odorless, stainless dry powder sachets, free shipping, and a 30-day money-back guarantee. See the box and bundles.

Always use as directed on the product label, and keep placements away from children and pets.

Day two, afternoon: treat properly, once

Place bait into every void on your list. One placement per cavity, two where you found live activity. Push them to the back, keep them dry, and keep them out of reach of children and pets. Then — and this is the part people find hardest — leave them alone. Do not spray over them. Do not scrub out the treated cabinet. Do not move placements around every two days to check on them.

Now you can clean the rest. Wipe surfaces, degrease behind the cooker, vacuum the floor voids you could not previously see into, and handle droppings with gloves and a damp cloth rather than a dry brush that puts particles into the air.

What normal progress looks like

Days 1–3: little or no visible change, possibly a short-term increase in sightings as insects move while affected. This is expected.
Days 4–10: noticeably fewer live insects, dead insects appearing in the open, fresh droppings tailing off in treated voids.
Weeks 2–3: substantially quieter. A second wave can appear as eggs laid before you started hatch on their own schedule.
Weeks 3–5: top up placements in any void still showing fresh droppings, then start sealing gaps.

The full sequence with the reasoning behind each stage is in the week-by-week timeline. If you are trying to decide whether to handle this yourself or call someone in, the cost comparison lays out where the crossover point usually sits.

The four mistakes that cost people a month

Spraying first. Scatters the population and poisons the well for bait.
Treating the kitchen only. The harbourage is frequently in the bathroom or laundry area.
Running out mid-round. A half-treated home rebounds and the next attempt starts from zero.
Deep-cleaning the treated void. Removing the placement you just made is self-defeating.

When to escalate immediately

Some situations should not be handled as a solo DIY job. Call a professional now, in parallel with treating, if you see live insects in daylight in multiple rooms, if the problem is clearly coming through shared walls or risers, if there is a suspected drain or sewer defect, if the property is a food business, or if there is anyone in the household who is immunocompromised. Report it in writing to your landlord or managing agent the same day if you rent.

Frequently asked questions

Should I move out for a few days?

Almost never necessary for a bait-based treatment, which is one of its advantages. There is nothing airborne to vacate for.

Can I bomb the flat tonight and bait tomorrow?

That is the worst of both worlds. The fogger will scatter the population and leave residues that reduce bait uptake for days.

Is it safe to eat in the kitchen while treating?

Yes, provided placements are inside voids and never on food preparation surfaces, and you follow the product label.

How many did I miss if I only saw one?

A single sighting in a home with no other signs may genuinely be a hitchhiker. A single sighting plus droppings, shed skins or a musty smell means an established population.

What if I am moving house next week?

Treat now and check everything you pack. The moving checklist covers boxes, furniture and groceries so you do not transfer the problem.

The short version

Hour one: seal food, empty the bin, dry the sink, find the water, do not spray. Tonight: torch survey after dark and sticky traps in every suspect spot. Day two: count the cavities, place enough bait to finish a full round, then leave it alone and clean everything else. Expect little change for three days, clear improvement inside two weeks, and one top-up round. Always use as directed on the product label, and keep placements away from children and pets.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →

August 4, 2026

How Many Roach Sachets Do You Need: Room-by-Room Coverage Math

Working out how many roach sachets you need is the step most people skip, and it is the reason so many treatments stall halfway. Coverage is not about square footage. It is about how many separate hiding places you can reach, because roaches do not travel across open floor to find bait — they find it inside the void they already live in. This guide gives you a room-by-room count so you can buy once, place properly, and avoid the gap that lets a population rebuild. Our 2026 roundup of the best roach killer powders covers what actually works and what to skip.

Why sachet count beats square footage

A 600 sq ft studio with a cluttered galley kitchen, a dishwasher, a fridge on rollers and a bathroom vanity can easily need more placements than a tidy 1,400 sq ft house. What matters is the number of discrete voids: each cabinet carcass, each appliance cavity, each plumbing chase, each hollow behind a kickboard. Every one of those is a separate address, and a sachet two metres away in the open is effectively in a different postcode.

The practical rule: one sachet per void, two in any void where you have already seen live activity or droppings. Under-placing is the classic failure mode. People buy one box, use eleven sachets, treat the kitchen only, and then conclude the product did not work when the survivors were living behind the bathroom vanity the whole time.

Room-by-room coverage counts

These are working numbers for a first full round in a home with confirmed activity. Reduce them if you are placing preventively after a move, and increase them where you have a live cluster.

Area	Typical placements	Where they go
Kitchen base cabinets	1 per cabinet, 6–10 total	Rear corners of each carcass, not the front edge
Kitchen wall cabinets	2–4	Top rear corners, behind stored dry goods
Under-sink cabinet	2–3	Dry ledge beside the trap, away from any drip
Behind and under the fridge	2–3	Compressor shelf, floor under the coil housing
Dishwasher cavity	1–2	Side gap between the tub and the cabinet run
Oven and range	1–2	Under the drawer, beside the toe kick
Bathroom	2–4 per bathroom	Vanity rear, behind the pedestal, near the pipe collar
Laundry area	2–3	Behind the washer, under the dryer, on the plinth
Living room	2–4	Behind the TV unit, under sofa plinths, media voids
Bedrooms	1–2 each	Wardrobe base corners, behind headboards on shared walls
Entry, hall, utility cupboard	2–4	Meter cupboards, boiler cabinets, riser access panels
Shared-wall gaps and risers	2–6	Any penetration where a pipe or cable enters a wall

Totals you can plan against

Add the relevant rows together and you get a realistic first-round figure. Most homes land in one of these bands.

Studio or one-bed apartment: roughly 18–26 sachets for a proper first round, so one 50-sachet box covers the first round and leaves enough for a top-up at week three or four.
Two-bed apartment or small house: roughly 30–42 sachets. One box does the first round with very little spare; if activity is heavy, a second box is the difference between finishing the job and running out mid-treatment.
Three-bed house: roughly 45–65 sachets. This is where a single box is genuinely tight and the 3-box bundle stops being an upsell and starts being the correct quantity.
Whole building or multi-unit landlord round: count each unit separately, then add risers and shared basements. Treating one unit in a block with a shared void is the single most common reason a “solved” problem returns.

The second number people forget is the top-up round. Eggs already laid before you started will hatch on their own schedule, so plan on refreshing placements in the highest-activity voids two to four weeks in. Budget roughly 30–40 per cent of your first-round count for that top-up. If you want the reasoning behind those intervals, the week-by-week timeline explains what should be happening at each stage, and the guide to egg cases covers why the hatch wave is not a sign of failure.

Work out your own number in ten minutes

Walk the home with a torch and a notepad. Open every cabinet, pull out every drawer that comes out, and look at the floor behind every appliance you can move safely.
Write one tick per void you can physically reach. Do not count rooms; count cavities.
Add a second tick beside any void with live insects, shed skins, dark speckling or a musty smell.
Total the ticks. That is your first-round count.
Add 35 per cent for the top-up round and round up to the nearest box.

If you are unsure whether a void is actually in use, put a sticky trap in it for two nights before you commit sachets. The sticky trap mapping method turns guesswork into a map, and it usually reveals one or two rooms people would never have treated.

Using RoachBuster for this? This is exactly what the coverage table above is sized for. A single box is $47 with 50 odorless, stainless dry powder sachets, free shipping, and a 30-day money-back guarantee. See the box and bundles.

Always use as directed on the product label, and keep placements away from children and pets.

Where people consistently under-buy

Three patterns come up again and again in homes where a treatment underperformed.

Treating the visible kitchen only

Sightings happen in the kitchen because that is where the light gets turned on at night. The harbourage is frequently elsewhere — under a bathroom vanity, inside a washing machine plinth, behind a boiler. Kitchen-only rounds are why a population dips for ten days and then comes back.

Ignoring the appliance cavities

The warm, dry, undisturbed space behind a fridge or inside a dishwasher surround is prime real estate. If you are not placing there, you are leaving the best habitat in the building untreated. The laundry room guide covers the washer and dryer voids specifically.

Running out and stopping

The most expensive version of this is buying one box, doing an incomplete round, seeing a partial result, and giving up. The population rebounds, and the next attempt starts from scratch. Buying enough to complete a full round plus a top-up is almost always cheaper than two half-rounds. The cost comparison puts real numbers on that.

A note on placement density

More sachets in one cabinet is not better than one sachet in each of five cabinets. Spread beats stacking, because a roach will feed on whatever is inside its own void and rarely travels far. The only time to double up in a single space is when that space is clearly the centre of activity — a heavy cluster under a sink, or a riser cupboard where you can see traffic.

Keep every placement dry and out of reach. Do not put sachets where a child, a pet or a curious hand can get to them, and do not place them on surfaces used for food. Sensible siting is covered in more detail in the clean-home attractants guide, which explains why the moisture and crumb sources matter as much as the bait.

Frequently asked questions

How many sachets are in one box?

Fifty. That is sized to complete a first round in a small to mid-sized home with something left for a top-up, which is why it works as a single-purchase option for apartments.

Is it wasteful to buy more than I need?

Unused sachets keep in their packaging in a cool, dry place, so surplus is not lost. Running out mid-round genuinely does cost you results, so the asymmetry favours buying slightly over.

Can I use fewer sachets and just move them around?

It is much less effective. Roaches feed opportunistically inside their own harbourage; moving a small number of placements around means most voids are untreated most of the time.

Do I need more in an apartment building?

Usually yes, because of shared walls, risers and neighbouring units you cannot treat. Concentrate extra placements on the penetrations where pipes and cables cross into your unit.

How do I know when to place the top-up round?

When you stop finding fresh droppings in a treated void, that void is quiet. When you are still finding them at week two or three, that is the void that needs the refresh.

The short version

Count cavities, not square metres. Budget one sachet per void, two where activity is confirmed, and 35 per cent extra for a top-up round. Studios and one-beds are comfortable on a single box. Two-beds are borderline. Three-bed houses and anything with shared voids should plan on more from the start, because the cheapest treatment is the one you only have to do once.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →

August 4, 2026

Roaches in the Laundry Room: Washer and Dryer Nests

Laundry rooms get overlooked because there is no food in them, and that reasoning is exactly why they end up hosting the nest. A utility space combines everything a cockroach colony needs except a pantry: a permanently warm motor housing, a drain and a supply connection that stay damp, dark enclosed cavities behind and beneath two large appliances, and lint, which is fibrous organic material that works as both food and nesting substrate. Finding the harborage is half the job — our guide to finding a roach nest in 48 hours shows exactly where to look first.

This guide covers why laundry rooms are such good habitat, the seven places to inspect, and how to treat around a washer and dryer without putting bait anywhere near clothing or a heat source.

Why a laundry room beats a kitchen

Requirement	What the laundry room provides
Water	Supply hose connections, the drain standpipe, the pump and sump, condensation on cold pipes, and damp lint
Heat	The washer motor housing and the dryer drum bearing, motor and exhaust ducting, all warm for hours after a cycle
Harbourage	The cavity behind and under both machines, the frame channels, the pedestal void, and the gap behind the standpipe
Food	Lint, fabric fibres, detergent residue, food soil rinsed out of clothing, and spilled powder
Quiet	Most utility rooms go undisturbed for days at a time, which is exactly what a colony needs

A kitchen has more food but far more disturbance. A laundry room has slightly less food and almost no disturbance, and for a breeding colony that trade is favourable.

The seven places to inspect

The washer motor and pump housing. Underneath at the rear, warm after every cycle and usually slightly damp. This is the most common nest position in the room.
Behind and under the dryer. Check the drum bearing area, the motor housing, and the lint that accumulates beneath the machine rather than in the trap.
The exhaust duct and vent hood. Flexible ducting collects lint along its whole length, and the exterior hood flap is a genuine entry point from outside if the damper is broken or stuck open.
The drain standpipe and the gap around it. The annular gap where the pipe passes through the floor or wall is both a harbourage crevice and a direct route to the waste stack.
Supply hose connections and the shut-off valves. Slow weeps here are common and often invisible because the water evaporates on a warm pipe.
Pedestals, plinths and the void beneath a stacked unit. These are enclosed on five sides and never cleaned.
Shelving and stored items. Cardboard boxes of detergent, paper towel packs, and stored bags provide harbourage. Cardboard on a shelf above a warm machine is close to ideal.

If you find droppings in more than one of these positions, treat the room as a primary nest site rather than a secondary zone. Identifying the evidence correctly matters here because lint and detergent granules are easy to confuse with droppings; the differences are covered in our guide to nesting signs.

The lint problem

Lint deserves its own section because it is the reason laundry rooms sustain populations that would starve elsewhere. It is dry, fibrous, warm, and it accumulates in exactly the enclosed cavities a colony wants. It also holds enough organic residue from clothing to serve as a food source, and it provides the multi-surface contact cockroaches seek. Clearing lint from beneath and behind the machines, not just from the trap, removes shelter and food in one action.

There is a second reason to do it: lint accumulation in a dryer duct is a fire risk independent of any pest issue, so this is one maintenance task that pays for itself twice.

The clear-out, step by step

Pull both machines forward. You need access to the rear and the floor beneath. Take a photo of the hose and duct positions first so reassembly is straightforward.
Vacuum everything. The floor cavity, the rear panels, the motor housings, the frame channels, and the full length of the flexible duct. Use a crevice tool and take your time.
Dispose of the vacuum contents outside immediately, in a sealed bag. Lint and debris from a nest area may contain egg capsules, and a capsule left in a vacuum in the same room will simply hatch there. See how to identify and destroy egg cases.
Fix every moisture point. Tighten or replace weeping hose connections, check the pump filter, and confirm the standpipe is not backing up. Dry the floor completely.
Seal the standpipe gap and any pipe penetrations. This closes both a harbourage crevice and a travel route in one go. Our sealing checklist covers suitable approaches.
Check the exterior vent hood. A damper that no longer closes is an open door. Fit a working hood or a fine mesh guard that does not restrict airflow.
Remove cardboard and repackage supplies into rigid sealed containers on wipeable shelving.
Improve ventilation. Leave the washer door ajar between cycles so the drum and seal dry, and run an extractor or open a window if the room holds humidity.

Where to place bait around a washer and dryer

Placement in a laundry room has constraints a kitchen does not, mainly heat, vibration, and clothing. Work through these rules rather than treating it as another cabinet.

Place along the wall behind each machine, at floor level, where the harbourage actually is.
Place in the corners of the floor cavity beneath the machines, pushed to the rear.
Place beside the standpipe, on the dry side, and beside the shut-off valves.
Place inside the base of a pedestal or plinth void if it is accessible.
Keep placements off any hot surface: not on the dryer casing, not against the motor housing, and not inside or near the exhaust duct.
Keep placements away from vibrating panels where they will be shaken out of position each cycle.
Keep placements well away from laundry baskets, folded clothing, and anywhere a basket is set down.
Keep placements out of reach of children and pets. Utility rooms often double as pet feeding areas, so move the bowls out or choose positions behind the machines only.
Follow the product label, and use dry rather than liquid or gel formats here. A humid room dries gels out quickly and a spilled gel on clothing is a stain problem; the difference is covered in gel versus dry powder.

Do not spray a laundry room

Two specific reasons on top of the usual ones. First, an aerosol in a small room with a gas dryer or a pilot flame is an obvious hazard, and residue on a hot dryer casing is not something you want in the air. Second, repellent residue near clothing and towels is the last place you want it. A non-repellent dry bait placed in the cavities behind the machines addresses the nest without putting anything on fabric or into the air. The broader case against repellents is in why sprays make roaches scatter.

Apartment laundry rooms and shared facilities

A shared laundry room in a building is a different problem, because it functions as a distribution hub. Every resident carries baskets in and out, the machines run warm almost continuously, and no single tenant is responsible for the cavity behind them. If your building has one and you have activity in your unit, assume the shared room is a candidate source and raise it with the building manager in writing rather than treating your own flat repeatedly.

Do not set laundry baskets on the floor in a shared room. Use a table or the top of a machine.
Do not leave clothing in a machine or on a folding surface for extended periods.
Check the base of a basket before carrying it back into your unit.
Wash and dry on the hottest setting the fabric allows, then bag items straight from the dryer if your building has a known problem.
Keep your own unit protected with maintenance placements, as set out in the apartment strategy.

Frequently asked questions

Can roaches live inside a washing machine?

They do not live in the drum, which is regularly flooded, but they readily occupy the surrounding cabinet: the motor and pump housing underneath, the frame channels, and the space behind the rear panel. Those areas stay warm and slightly damp and are never disturbed.

Will hot washing kill roaches in clothing?

A hot wash and a full hot tumble dry will deal with insects and eggs on fabric, and it is worth doing for anything stored in an affected room. It does nothing about the nest in the appliance cavity, which is where the population actually lives.

Can they come in through the dryer vent?

Yes, if the exterior damper is broken, propped open by lint, or missing. It is a warm, sheltered opening leading directly into a lint-filled duct, which is an attractive route. Checking and repairing the hood is one of the higher-value fixes in the room.

Why do I only see them in the utility room?

Usually because that is where the harbourage and moisture are, and the kitchen simply provides feeding trips. If sightings are concentrated in one room, three nights of glue boards will confirm whether it is the nest or a corridor. The method is in mapping a nest with sticky traps.

Treat the room, not the sighting

Laundry rooms reward this work more than most spaces, because the harbourage is concentrated in a few accessible cavities and the moisture problems are usually easy to fix. Pull the machines out once, vacuum thoroughly, seal the standpipe, repair the vent hood, and place dry bait in the cavities behind them.

For placement in a warm, humid room, GreenLeaf RoachBuster works well because the sachets are dry, odorless and non-staining, so there is nothing to run or dry out and nothing to mark towels and clothing. A single 50-sachet box covers a utility room and the kitchen alongside it. Always use as directed on the product label, and keep placements away from children and pets.

Ready to clear your home without odors or stains?

Claim the 50-sachet GreenLeaf RoachBuster box today. Free shipping, secure Stripe checkout, a 30-day money-back guarantee, and targeted odorless dry powder sachets built for kitchens, cabinets, gaps and appliances.

See the box and bundles

Use only as directed on the product label. Keep away from children and pets.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →

August 3, 2026

What Attracts Roaches to a Clean Home
The most demoralising thing about a cockroach problem is the assumption behind it. People treat an infestation as a verdict on their housekeeping, which is both unfair and unhelpful, because the resources a colony actually needs have very little to do with whether your worktops are wiped. A spotless kitchen with a slow-dripping trap and a warm dishwasher cavity is a better habitat than a messy one that is completely dry. Pair this with our prevention plan that sticks so a cleared home stays cleared.
Here is what actually attracts and sustains cockroaches in a clean home, in rough order of how much difference each one makes.
Water matters more than food
This is the single most useful thing to understand. Cockroaches can survive a remarkably long time without food, but only a matter of days without water. That inverts the usual priority list. A kitchen with no crumbs anywhere and a weeping compression fitting under the sink is supporting a population; a kitchen with crumbs and no moisture is much less able to.
- A slow drip at a tap, trap, or shut-off valve, often invisible because it evaporates before it pools.
- Condensation on cold pipes inside a cabinet, which is continuous in humid months.
- The refrigerator drip pan, which holds standing water permanently and sits in a warm dark cavity.
- The dishwasher door seal and sump, which stay damp between cycles.
- Pet water bowls left down overnight.
- A damp bath mat, a shower tray seal, or an overflow that never fully dries.
- The air-conditioning condensate line and tray.
- A washing machine drain hose connection and the cavity behind the drum.
If you fix nothing else, fix these. Every product you use afterwards works better, because the colony loses the resource it cannot substitute.
Heat, and the appliances that make it
Warmth accelerates the entire life cycle. It shortens the time an egg capsule takes to hatch and the time a nymph takes to reach breeding age, which is why the same population grows faster behind a refrigerator than in an unheated garage. Modern kitchens are full of permanently warm enclosed cavities, and those cavities are the reason a very clean home can hold a substantial population entirely out of sight.
- The refrigerator compressor housing and coils.
- The dishwasher motor housing and the cavity around it.
- The microwave control panel cavity and vent.
- Coffee machines, kettles, toasters, and air fryers, all of which retain heat and crumbs.
- The washing machine and dryer motor housings.
- Boilers, water heaters, and the cupboards they sit in.
- Router and set-top box housings, which run warm continuously.
This combination of heat and enclosure is why appliance cavities are usually the primary nest site rather than the floor or the worktop. Our guide to roaches in kitchen appliances covers how to open up and treat these zones.
Harbourage: tight spaces, not dirt
Cockroaches are thigmotactic, which means they seek contact on multiple surfaces at once. What they are looking for is a gap of the right width, not a mess. A brand new fitted kitchen offers an enormous number of these gaps: hinge recesses, the seams where melamine panels meet, drawer runner channels, the void behind a kick board, and the gap between a cabinet carcass and the wall. None of them get dirty, and all of them are ideal.
- Cabinet hinge recesses and cam-lock holes.
- The channel behind and under drawer runners.
- The void behind the kick board or plinth.
- Gaps around pipe penetrations and behind loose skirting.
- Corrugated cardboard, which is warm, fibrous, and provides multi-surface contact in every direction.
- Stacked paper bags, magazines, and cereal boxes stored inside cabinets.
The cardboard point is worth emphasising because it is the one item on this list that is entirely within your control and is routinely overlooked. A tidy stack of flattened delivery boxes in a utility cupboard is not clutter in any visual sense, and it is one of the best harbourage materials available.
The food sources a clean kitchen still has
A colony needs a very small amount of food, and it does not need to be on an open surface. Wiping down every evening does not touch any of the following.
- Grease film on the underside of extractor filters and on cabinet doors near the hob.
- Crumbs in the toaster tray and in the gap between the hob and the counter.
- Spills that ran down the side of a cabinet and dried behind the kick board.
- Dry goods in original cardboard or bag packaging rather than sealed rigid containers.
- Pet food stored in its sack, and pet bowls left down overnight.
- Bin liners in a bin without a sealed lid, and the residue in the bin base.
- Recycling with rinsed but not clean bottles and tins.
- Bar soap, toothpaste residue, and hair in bathroom drains, all of which are usable food.
That last item surprises people. A bathroom with no food in the conventional sense still offers organic material in the drain and the moisture to go with it, which is why bathrooms are a common secondary zone. The kitchen cabinet audit walks through finding the hidden food sources systematically.
How they got in, in a clean home
Cleanliness has no bearing on entry. In multi-unit buildings the great majority of introductions are structural rather than behavioural.
- Shared walls, ceiling voids, and plumbing risers between units. A neighbour vacating or being treated with a repellent pushes their population into your unit. See preventing migration through shared walls.
- Waste stacks and floor drains, particularly for the larger species. Covered in drain and sewer entry.
- Grocery deliveries, cardboard packaging, and paper bags.
- Secondhand furniture, appliances, and electronics.
- Luggage and bags after travel or a stay elsewhere.
- A move, which is the highest-risk single event. Our moving checklist covers it in detail.
A one-hour audit that actually changes things
1. Dry out every moisture point on the list above and repair anything that drips. Run a hand along cold pipes inside cabinets to find condensation.
2. Pull the refrigerator out, empty and dry the drip pan, and vacuum the compressor housing.
3. Empty the toaster tray, vacuum the microwave vents, and clean the dishwasher filter and door seal.
4. Remove all cardboard and paper bags from the property.
5. Transfer dry goods and pet food into rigid sealed containers.
6. Lift out the lowest drawer in the kitchen and inspect and vacuum the carcass behind it.
7. Pick up pet bowls at night and dry the bathroom floor and shower tray before bed.
8. Seal the obvious gaps: pipe collars, the kick board void, and any gap behind loose skirting. See the sealing checklist.
This is not a cleaning routine, which is why a clean home can still benefit enormously from it. It is a resource audit, and it addresses the four things a colony needs rather than the one thing that is visible.
Frequently asked questions
Can you get roaches in a spotless house?
Yes, routinely. Cleanliness affects one of four requirements, and only partially. Water, warmth, and enclosed harbourage are largely determined by plumbing, appliances, and construction, none of which respond to wiping surfaces.
Does cleaning more get rid of roaches?
Cleaning alone rarely eliminates an established population, because the colony lives inside voids that cleaning does not reach and feeds on residues you cannot see. Cleaning does make bait considerably more effective by removing competing food, so it is worth doing as preparation rather than as the treatment.
Should I deep clean before or after baiting?
Before. Remove competing food first, then place bait and leave those areas undisturbed for several weeks. Cleaning over placements mid-treatment is one of the most common reasons a treatment stretches out, as explained in our treatment timeline.
Why do I have roaches when my neighbours do not?
They may well have them and not know, since a low-level population in a wall void produces no visible sightings. Alternatively your unit may simply hold the better resources, most often because of a plumbing leak, a warmer appliance run, or the layout of the riser.
Stop treating it as a verdict
An infestation in a clean home is a resource problem, not a character flaw. Water, heat, tight gaps, and a way in are what a colony needs, and three of those four are decided by your plumbing and your kitchen construction rather than your habits. Fix the moisture, open up the appliance cavities, remove the cardboard, and put bait where the harbourage actually is.
For that last step, GreenLeaf RoachBuster gives you 50 odorless, stainless dry powder sachets per box for placement inside the enclosed cabinet and appliance zones this audit identifies, without a scent or residue that would push the colony elsewhere. Always use as directed on the product label, and keep placements away from children and pets.
Wider reading: the complete Roach Control Guide maps every article on the site by the question you are trying to answer — first 48 hours, identification, method, room by room, comparisons, safety, rentals and local conditions.
Ready to clear your home without odors or stains?
Claim the 50-sachet GreenLeaf RoachBuster box today. Free shipping, secure Stripe checkout, a 30-day money-back guarantee, and targeted odorless dry powder sachets built for kitchens, cabinets, gaps and appliances.
See the box and bundles
Use only as directed on the product label. Keep away from children and pets.
Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →
August 3, 2026
Roaches in Your Car: How to Clear Them Without Fogging
Finding a cockroach run across your dashboard is unsettling in a way a kitchen sighting is not, because a car is a sealed box you sit inside for an hour a day. It is also one of the few pest problems where the standard advice, setting off a fogger, is actively the wrong move: it coats every surface you touch and breathe against, and it does not reach the harbourage anyway. Pair this with our prevention plan that sticks so a cleared home stays cleared.
This guide covers how roaches get into a vehicle, the eight places they actually hide, and a step-by-step process for clearing them using cleaning and targeted dry bait placement rather than aerosols inside a confined cabin.
How they got in
Cars are not naturally attractive to cockroaches. They are dry, they get extremely hot, and they move. Almost every infested vehicle was seeded by something carried into it.
- Grocery bags and takeaway containers. Paper bags and corrugated cardboard are among the most common transport routes, and both spend time in a boot.
- Cardboard boxes. Moving boxes, delivery boxes, and warehouse packaging routinely carry egg cases in the corrugations.
- Parking next to a source. A car left overnight beside a bin store, a restaurant service door, or a basement garage with a drain problem is directly in a travel path.
- Infested home. If your kitchen has a population, insects will travel in bags, laundry, school rucksacks, and pushchairs.
- Secondhand items. Furniture, appliances, and electronics moved in the back seat are a classic introduction route.
- Food left in the car. A single fries carton under a seat provides food, moisture, and shelter simultaneously.
The route matters, because if the source is your home, clearing the car alone will fail on repeat. Start with the kitchen, using something like our kitchen cabinet treatment guide, and treat the vehicle in parallel.
Where they hide in a vehicle
Roaches need warmth, darkness, tight contact on multiple sides, and a moisture source. A car offers all four in specific places.
- Under the seats and inside the seat rails. The rail channels are enclosed metal tracks full of crumbs.
- Inside the door cards. The cavity behind the interior door panel is dark, warm, and holds condensation.
- The glovebox and centre console. Especially if either holds wrappers, receipts, or napkins.
- Under the carpet and in the spare wheel well. Damp underlay from a leaking seal or spilled drink is prime harbourage.
- Behind the dashboard and in the HVAC housing. Warm, permanently dark, and moist from air-conditioning condensate.
- The boot lining and rear parcel shelf. Fabric-backed panels with a wide gap behind them.
- Child seats. The joints, foam gaps, and buckle recesses hold crumbs and are rarely fully removed.
- The engine bay. Some individuals shelter around warm ancillaries, which is how insects survive when the cabin gets too hot.
The step-by-step clear-out
Step 1: Strip the vehicle completely
Remove everything: floor mats, boot liner, child seats, spare wheel, and every piece of paper and cardboard. Cardboard and paper bags should go straight into a sealed bin bag and out of the vehicle, not back into the house. This one step removes a large share of the harbourage and most of the egg cases.
Step 2: Vacuum aggressively, then dispose of the bag properly
Use a crevice tool along every seat rail, seat seam, and trim edge, then lift the carpet edges where you can. Vacuum the door pockets, the console recesses, and under the parcel shelf. When you are finished, the vacuum bag or canister contents go into a sealed plastic bag and into an outside bin immediately. An egg case left in a vacuum in the garage will simply hatch there. Egg case identification is covered in our ootheca guide.
Step 3: Eliminate the moisture source
An infestation that keeps coming back in a car almost always has a water problem. Check for a damp carpet under the driver mat, a blocked air-conditioning drain, a leaking windscreen or door seal, and standing water in the spare wheel well. Dry the interior thoroughly, with the windows down in the sun or with a dehumidifier bag in the cabin overnight. Without water, a population cannot persist even if food is available.
Step 4: Clean, do not fog
Wipe hard surfaces with a simple detergent solution and shampoo fabric only if it can dry fully within a day. Do not use a total release fogger or an aerosol bomb in a vehicle. The cabin is a small, enclosed space with air vents, upholstery, and surfaces you touch continuously, and residue is difficult to remove from HVAC ducting. Foggers also fail on their own terms: they push survivors deeper into the door cavities and dashboard, exactly where you cannot reach them.
Step 5: Place dry bait in enclosed, out-of-reach positions
Bait is the right tool here because it works through the harbourage rather than on contact, and dry powder sachets do not run, drip, or stain in heat the way gels do. Placement rules for a vehicle are stricter than for a home.
- Under the front seats, pushed to the rear against the floor, where they cannot be kicked or reached by a passenger.
- In the spare wheel well, beneath the wheel or liner.
- At the rear corners of the boot, behind the side lining if there is a gap.
- Inside the centre console storage bin, at the back, only if the vehicle carries no children or pets.
- Never on a pedal, in a footwell walkway, in a door pocket a child can reach, or anywhere it can slide under a brake pedal.
- Never inside the HVAC intake or on top of a heated surface.
Follow the product label, keep placements out of reach of children and pets, and remove them entirely before any journey where a child or animal will be unrestrained in that part of the vehicle. Pet safety in confined spaces is worth reading up on separately in our pet-safe control guide.
Step 6: Monitor for three weeks
Put two small glue boards in the vehicle, one under a front seat and one in the boot, and check them weekly. Counts should fall by week two, with a possible small nymph wave in week three as any remaining egg cases hatch. Two consecutive clear weeks means you are done. The method is covered fully in our guide to monitoring with sticky traps.
What about the heat and cold theories?
Parking in full sun does raise cabin temperatures considerably, and it makes the cabin less habitable, but insects shelter in the cooler cavities, in the engine bay, and low in the door cards. The same applies in reverse to leaving a car out in freezing weather: sustained sub-zero temperatures throughout every cavity would be needed, and a typical overnight frost does not achieve it. Treat temperature as a mild pressure that supports your treatment, never as the treatment itself.
Keeping the car clear
- No food or drink left in the vehicle overnight, ever. This single habit prevents most reinfestations.
- Break down and bin cardboard outside rather than transporting it in the boot.
- Unpack grocery bags immediately, and use washable bags instead of paper where you can.
- Vacuum the interior fortnightly, focusing on seat rails and child seat joints.
- Avoid overnight parking directly beside bin stores and restaurant service areas where you have a choice.
- If your home has an active population, treat the home as the primary job. The car is downstream of it.
Frequently asked questions
Will a roach bomb work in a car?
It is a poor choice. Foggers do not penetrate door cavities or dashboard housings where the insects shelter, and they leave residue across surfaces and air vents inside a small space you occupy daily. Removal of harbourage plus targeted bait is both safer and more effective.
Can cockroaches damage a car?
They can foul upholstery and air vents with droppings, leave a persistent musty odour, and in rare cases chew wiring insulation and adhesive. The practical damage is usually odour and staining, which is why an odourless, non-staining approach matters here.
How long does it take to clear a car?
A vehicle seeded recently from a bag of groceries often clears within a week of a thorough strip-out and vacuum. A car connected to an infested home will keep reinfesting until the home is treated, regardless of what you do to the car.
Why does my car still smell musty after treatment?
The odour comes from droppings and secretions left in fabric and ducting, and it lingers after the insects are gone. Deep clean the affected fabric, replace the cabin air filter, and dry the interior fully. Our article on eliminating the musty roach smell goes into more detail.
A cabin you can sit in
Cars respond well to this approach because the harbourage is limited and easy to strip. Remove the food and cardboard, fix the moisture, vacuum properly, place dry bait where nobody can reach it, and monitor for three weeks.
GreenLeaf RoachBuster suits vehicle work specifically because the sachets are odorless and stainless, so they do not add a chemical smell to a sealed cabin or leave marks on carpet and trim. A single 50-sachet box covers a vehicle and the home kitchen that is usually the real source. Always use as directed on the product label, and keep placements away from children and pets.
Wider reading: the complete Roach Control Guide maps every article on the site by the question you are trying to answer — first 48 hours, identification, method, room by room, comparisons, safety, rentals and local conditions.
Ready to clear your home without odors or stains?
Claim the 50-sachet GreenLeaf RoachBuster box today. Free shipping, secure Stripe checkout, a 30-day money-back guarantee, and targeted odorless dry powder sachets built for kitchens, cabinets, gaps and appliances.
See the box and bundles
Use only as directed on the product label. Keep away from children and pets.
Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →
August 3, 2026

Fridge Pest Maintenance Schedule: Stop Roaches Returning to the Compressor Bay

If you have a cockroach problem in your kitchen, there is a very high probability that the primary nesting center is located directly beneath or behind your refrigerator. Refrigerator compressor voids are the number-one pest hotspot in residential kitchens, offering constant warmth from the motor, nearby water from the condensation defrost pan, and dark, undisturbed concealment. For the full clearance sequence after identification, follow the 21-day German roach infestation treatment plan.

The Fridge Heat Trap: Why Wet Gels Run and Dry Out

Applying sticky gel baits to clear refrigerator nests is notoriously ineffective. Refrigerator motors run hot, generating a constant flow of warm air around the compressor coils. This heat rapidly dries out standard wet gel baits within 48 hours, turning them into hard, unappeetizing plastic beads that pests ignore. Furthermore, the heat can cause low-viscosity gels to melt and run, potentially dripping into electronic relay switches or creating sticky, hard-to-clean smears on your kitchen floor.

How to Surgically Treat Refrigerator Motor Voids

Clearing a refrigerator nest requires a dry, heat-resistant bait format. Follow these three steps to secure the area:

Pull and Vacuum: Pull the refrigerator away from the wall. Unplug it and vacuum the accumulated dust, pet hair, and pest debris around the bottom compressor panel.
Position Dry Sachets: Place self-contained dry powder bait sachets directly beside the compressor coils on the floor. Because RoachBuster utilizes dry powder bait sealed in protective paper sachets, there is zero risk of running, dripping, or drying out under high compressor heat.
Keep Bait Active: Slide the refrigerator back into position. The dry powder remains fully active and appetizing to foraging pests for months under the appliance, providing a continuous shield that wipes out the nesting center.

Next steps: how many sachets a full round actually takes, how to tell whether a treatment is working, and why roaches come back after treatment.

Is the fridge the source or a symptom?

Before you plan anything, work out which situation you are in, because the response is different. If the compressor bay holds droppings, shed skins and egg cases while the rest of the kitchen is largely clean, the fridge is the source and a targeted round plus a clean-out will resolve it. If you find droppings in the fridge bay and also in the under-sink cabinet, the plinth void and the dishwasher gap, the fridge is one harbourage among several and treating it alone will not move the needle. A five-minute torch check of three other locations before you start saves a wasted week.

Fridge types and their specific weak points

Type	Extra weak point	What to do differently
Freestanding with rear coil	Exposed coil dust blanket	Vacuum coil twice a year, place at bay edge
Freestanding with base coil and fan	Fan-cooled bay pulls in debris continuously	Vacuum from the front kickplate as well as the rear
Integrated or built-in	No access without removing the housing panel	Place at the plinth and cabinet floor; book a technician if activity persists
American style with ice and water	Plumbed water line and a second drain path	Check for a slow leak at the connection; a permanent damp patch is the real problem
Under-counter fridge	Compressor recess boxed in by cabinetry	Treat as part of the cabinet plinth void
Chest freezer in garage or utility	Rarely moved, often on a damp floor	Raise on blocks, keep the floor dry, place adjacent
Apartment alcove fridge	Enclosed alcove restricts airflow and traps heat	Improve air gap; alcove corners need placements too

A maintenance calendar that also cuts your electricity bill

Monthly. Wipe the door gasket channel, check the floor beneath for droppings, and confirm placements are present and dry.
Quarterly. Pull the appliance out, vacuum the visible bay and floor, check for any water at the connection or under the unit.
Twice a year. Full coil vacuum, condensate tray wash, gasket clean, wall and floor clean, placements replaced.
Annually. Check the door seal by closing it on a sheet of paper; if the paper pulls out easily the seal is failing, which raises running cost and creates condensation.
After any service visit. Replace the placements, because technicians will move or discard them.

A clean condenser coil measurably reduces energy consumption, so this schedule pays for itself independently of the pest benefit. It is one of the few maintenance tasks with two unrelated payoffs.

When to stop and call a technician

Activity continues after two full clean-outs and rounds, which suggests population inside a sealed section you cannot reach.
The appliance is integrated and cannot be moved without removing cabinetry.
There is standing water you cannot trace, which usually means a blocked drain channel inside the cabinet.
The unit has developed an electrical or control fault after an infestation, since droppings can foul boards and contacts.
You would need to open a sealed compartment or disturb refrigerant lines to reach the harbourage. Do not attempt this.

Preventing the fridge from being chosen again

Three changes make the location far less attractive without any product at all. Leave a proper air gap behind and above the appliance so the bay runs cooler and drier. Keep the condensate tray clean so there is no standing water. And stop storing anything on top of or immediately beside the fridge, particularly bread, cereal, pet treats and fruit, because the warm zone above a fridge accelerates spoilage and creates a food source right next to the harbourage. Combine that with a maintained placement at the bay edge and the fridge stops being the reliable refuge it was. If activity keeps returning across the whole kitchen rather than just the fridge, the cause is usually elsewhere and our recurrence guide covers the likely explanations.

Questions people ask

Can I use a coil brush instead of a vacuum?

Brush and vacuum together. Brushing alone redistributes the dust and the debris into the room, including egg cases.

Is a warm fridge exterior normal?

Some warmth at the sides and rear is normal. Excessive heat usually means a dirty coil or restricted airflow, both of which also make the location more attractive to insects.

How many placements does a fridge need?

Two: one at the outer edge of the compressor bay and one on the dry floor beneath or behind. Whole-kitchen counts are in our coverage arithmetic guide.

Should I bait inside the fridge itself?

Never. Nothing goes inside a food storage compartment.

The short version

First decide whether the fridge is the source or one harbourage among several. Match the approach to the fridge type, run a monthly, quarterly and twice-yearly maintenance rhythm that also lowers running cost, leave a real air gap, keep the tray clean, stop storing food on top, and call a technician when the harbourage is behind a sealed section. One box covers the fridge and the rest of the kitchen, with a 30-day money-back guarantee.

Always use any bait product as directed on its label, and keep placements out of reach of children and pets. Isolate power before working near any appliance, never introduce liquid into an enclosure, and use a qualified technician for anything sealed.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →

June 10, 2026

Roaches in TVs, Routers and Consoles: Safe Electronics Treatment Without Damage

Few pest situations are more unsettling than noticing cockroaches crawling behind the digital clock display of your microwave or scurrying out of the control panel when you push a button. Appliances provide the perfect nesting spots: they offer constant warmth from control transformers, dark concealment behind plastic panels, and instant access to cooking grease and food crumbs. Finding the harborage is half the job — our guide to finding a roach nest in 48 hours shows exactly where to look first.

The Hazard of Spraying Liquid Pesticides on Circuit Boards

When dealing with roaches nesting inside appliance electronics, never spray liquid insecticides, aerosol bug sprays, or water-based repellents into the panel gaps. Liquid sprays are highly conductive and can immediately short-circuit your microwave control board, ruining the appliance and creating a serious fire hazard. Furthermore, spraying volatile chemical solvents near food preparation surfaces carries major chemical contamination risks.

Why Sticky Gel Baits Fail Inside Electronics

Squeezing wet gel baits directly onto circuit boards is also problematic. As the microwave heats up during use, gel baits can run, potentially gumming up keypad membranes or dripping onto high-voltage components. Additionally, the constant heat inside electronics causes wet gels to completely dry out and harden in a matter of days, making the bait unappetizing and ineffective.

Safe, Dry, Non-Conductive Extermination

To clear cockroaches from microwave control panels safely, you must use a dry, non-conductive, self-contained baiting system. Placing dry powder sachets next to the appliance is the ultimate solution. GreenLeaf RoachBuster uses odorless, dry active powder enclosed inside paper sachets. Simply slip one sachet in the narrow cabinet gap directly beside the microwave, or under the counter underneath it.

The insects are drawn out of the electronics by the sachet’s food attractants, consume the bait, and carry particles back to the nesting center inside the microwave casing, destroying the colony without messy residues or electrical damage.

Next steps: how many sachets a full round actually takes, how to tell whether a treatment is working, and why roaches come back after treatment.

Electronics are a different problem from appliances

A fridge or a washing machine can be pulled out, opened at the back and vacuumed. Consumer electronics cannot. A television, a games console, a router, a set-top box, a desktop computer and a soundbar are sealed plastic enclosures with narrow ventilation grilles, low-voltage boards, and warranty seals that void if you open them. They also run warm continuously, sit undisturbed for years, and are usually positioned against a wall in a media unit with poor airflow. That combination makes them attractive harbourage and simultaneously restricts almost every treatment option.

So the approach has to change. With electronics you are not treating the inside of the device. You are making the outside of the device unattractive and intercepting traffic around it, and you are being careful not to destroy an expensive item in the process.

What is genuinely unsafe to do

Never spray anything into a vent. Aerosol propellant and residue on a board can cause corrosion, tracking and short circuits, and the damage may not appear for weeks.
Never use compressed air aggressively into an enclosure. It drives debris and insects deeper and can damage fan bearings.
Never use a liquid cleaner near a grille. Capillary action pulls liquid inside.
Never open a sealed power supply or a television panel. Some components store dangerous charge even when unplugged.
Never place bait through a vent or inside a case. Material inside an enclosure can obstruct airflow, contact a board or be drawn into a fan.
Never use a household vacuum nozzle directly on a circuit board. Static discharge risk, and the nozzle can break components.

What to do instead

Power down and unplug. Let the device cool completely.
Move it out and inspect the surroundings. The wall behind, the shelf beneath and the cable bundle are where the droppings and egg cases will be, far more than inside the case.
Vacuum the surroundings, not the device. Shelf, wall junction, cable tray and floor beneath, with a crevice tool.
Wipe the exterior with a dry microfibre cloth. Grilles can be brushed gently with a soft dry brush.
Improve the airflow and the position. Raise the device on feet or a stand, pull it fifty millimetres off the wall, and stop enclosing it in a closed cabinet. Cooler and better ventilated is less attractive.
Untangle and lift the cable bundle. A dense nest of cables on a shelf is harbourage in itself. Cable ties and a raised tray remove it.
Place bait around, never inside. One sachet at the rear corner of the shelf behind the device, one in the media unit floor corner, one at the wall junction. Keep them out of the airflow path.
If you suspect an established population inside a device, use a technician. Professional service can open, clean and reassemble the unit safely, which is the only proper route for a sealed enclosure.

Placement plan for a media wall or desk

Position	Placement	Note
Media unit floor corners	2	Rear corners, out of sight
Shelf rear corner behind each device	1 per shelf	Clear of vents and airflow
Cable tray or trunking corner	1	Not inside the trunking
Wall junction behind the unit	1 to 2	Along the skirting line
Desk floor corners under a computer	2	Rear corners
Router or modem shelf rear	1	Never on top of the device
Behind a wall-mounted television	1	On the bracket shelf or wall junction below, if safe to reach

Why electronics get chosen in the first place

Three reasons, all fixable. Continuous low-level heat, because standby and idle modes still dissipate power. Total absence of disturbance, because nobody moves a router for years. And food and moisture nearby, because media units live in living rooms where people eat, and desks accumulate crumbs. Removing the food, moving the device off the wall, improving airflow and vacuuming the surroundings monthly changes the microclimate enough that the location stops being attractive. Interception around the device handles the rest. If activity persists across multiple rooms, the population is elsewhere and the electronics are a symptom; our coverage arithmetic guide will help you plan a whole-home round.

Questions people ask

Can insects actually damage electronics?

Yes, though it is not the most common outcome. Droppings and bodies can bridge contacts, block airflow and cause corrosion over time. Fouled cooling is the usual practical effect.

Will opening the device void my warranty?

Usually yes. That is a strong argument for using a service technician rather than attempting it yourself.

Is a fogger safe around electronics?

No. A fogger deposits residue on every surface including circuit boards and connectors, and it does not reach inside enclosures effectively either. Our method comparison explains why.

How long should I keep placements around a media unit?

Keep them in place permanently as prevention, replacing on your monthly clean. Electronics are a recurring target and a maintained placement is cheap insurance, as our recurrence guide explains.

The short version

Do not spray, blow, wash or open electronics. Power down, move the device out, vacuum the surroundings, brush grilles dry, raise the unit off the wall for airflow, tidy the cable bundle, and place dry sachets around the shelf and floor rather than inside the case. Use a technician for anything sealed. One box covers a media wall, a desk and the rest of the home, with a 30-day money-back guarantee.

Always use any bait product as directed on its label, and keep placements out of reach of children and pets. Isolate power before working near electronics, never introduce liquid or aerosol into an enclosure, and use a qualified technician for anything sealed or under warranty.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
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June 10, 2026

Advion Cockroach Gel Bait vs. Dry Powder: Overcoming German Roach Bait Aversion

For years, pest control professionals have relied on high-performance gel baits like Advion Cockroach Gel Bait as the gold standard. However, an increasing number of homeowners and property managers are finding that German roaches are ignoring these once-potent treatments. This shift is driven by a biological phenomenon known as glucose-aversion, combined with the physical limitations of gel baits. Roaches walking past your placements? See the five real reasons in roach bait not working, then compare formats in our best roach killer powder guide.

Understanding German Roach Bait Aversion

Bait aversion is an evolutionary adaptation. In many populations of German cockroaches, individuals that possess a genetic aversion to glucose (the sweet binding agent used in most gel baits, including Advion) survive while their siblings eat the bait and die. Over time, the surviving glucose-averse cockroaches breed, resulting in a localized population that completely rejects sweet gel baits. If you notice roaches walking right past fresh gel drops, you are likely dealing with bait aversion.

The Gel Evaporation Problem

Even without genetic aversion, gel baits face a physical challenge: evaporation. Gel baits rely on moisture to attract roaches. In dry indoor air, especially near warm appliances, gel baits can dry out and harden in 48 to 72 hours. Once the moisture is gone, cockroaches lose interest. To maintain effectiveness, you have to constantly reapply fresh, messy gel drops, which can lead to unsightly staining in your kitchen drawers and cabinets.

Why Dry Powders Outlast and Outperform Gels

Dry powder baiting bypasses these vulnerabilities entirely. Instead of sweet glucose syrups, dry baits utilize complex proteins and fats that draw in even glucose-averse roaches. Furthermore, because a dry powder has no water content to lose, it never dries out, runs, or hardens. GreenLeaf RoachBuster features an active dry borate-based powder sealed inside specialized paper sachets. The sachets keep the active ingredient dry, clean, and highly appetizing for months. Pests simply chew through the paper, ingest the dry powder, and carry it back to the nesting center, decimating the colony without messy cleanups or frequent reapplication.

Next steps: how many sachets a full round actually takes, how to tell whether a treatment is working, and how powder, sprays and foggers differ.

Bait aversion is a real, documented phenomenon

German cockroach populations can become averse to baits, and it happens through two separate mechanisms that are often confused. The first is behavioural resistance to a specific attractant. Populations have been documented developing an aversion to glucose, the sugar used in many bait matrices, to the point where individuals actively reject it as if it tasted bitter. That trait is heritable, so it spreads through a population under selection pressure. The second mechanism is learned avoidance: if a bait kills too quickly, insects associate the location or the matrix with harm and the surviving population avoids it.

Both mechanisms have the same practical consequence. The bait sits untouched, the household concludes the product does not work, and the real problem is that the population will not eat that particular matrix.

How to tell aversion from a placement problem

Observation	Likely aversion	Likely placement or competition problem
Bait untouched after two weeks, activity clearly present	Possible	Possible; check position first
Bait untouched but insects walking past it on monitors	Strong indication	Unlikely
Bait untouched and no activity on monitors either	No	Placement is in the wrong location
Bait partly consumed then abandoned	Learned avoidance, or matrix dried out	Check whether the placement is old or damp
Bait consumed rapidly in one location, ignored elsewhere	No	The ignored locations are not on travel routes
Bait ignored while pet food and crumbs are available	No	Competing food is the problem

The first check is always placement and competition, because they explain far more failures than aversion does. Move placements onto smear-marked routes, remove pet food overnight, dry the sinks and re-check for a week before concluding anything about the matrix.

What to do if a population is genuinely averse

Change the matrix, not just the brand. Two products with similar sugar-based matrices may fail identically. Switching to a different attractant base or a different format is the meaningful change.
Reduce competing food to near zero. Aversion is relative. A matrix that is rejected while crumbs are available may be accepted when it is the only option.
Increase the number of placements and the number of locations. Aversion varies between individuals within a population; more encounters means more uptake.
Do not switch to a repellent spray out of frustration. This is the most common response and it makes the situation substantially worse, as our method comparison explains.
Consider a slower-acting active. Slow action reduces the association between the bait and harm, which is the mechanism behind learned avoidance.
Rotate matrices between rounds rather than using the same one indefinitely, which reduces the selection pressure that produces aversion in the first place.

Why format influences aversion risk

Two design features reduce the risk of both mechanisms. A slow-acting stomach toxicant does not produce a rapid death at the feeding site, so there is little for the population to associate with harm. And a matrix that is not built primarily around glucose is not selected against by glucose aversion. A dry sachet format adds a third, more practical advantage: because the material does not dry out or crust the way an exposed gel dot does, the failure mode of an old, unpalatable placement is much less common. None of this makes any product immune to aversion, and rotating matrices remains sensible practice, but it does explain why some formats hold up better in populations that have already been treated repeatedly.

Questions people ask

How common is glucose aversion?

It is well documented in German cockroach populations, particularly in locations with a long history of bait use, such as apartment blocks and commercial kitchens. It is not universal, and it is much less likely in a newly established household population.

Does aversion mean the insects are resistant to the insecticide?

No. Aversion is behavioural: they refuse to eat the bait. Metabolic resistance to the active ingredient is a separate issue.

How long should I wait before switching products?

Two weeks with correct placement and competing food removed. If monitors show traffic past untouched bait during that period, switch the matrix.

Can I use two different baits at once?

Yes, and in a difficult population it is a reasonable strategy, since it increases the chance that at least one matrix is accepted. Both should be non-repellent, and you should read both labels.

The short version

Aversion is real and comes in two forms: heritable rejection of an attractant such as glucose, and learned avoidance caused by fast-acting baits. Check placement and competing food first, then change the matrix rather than the brand, add placements, never switch to a repellent spray, and rotate matrices between rounds. A slow-acting dry sachet is a sensible matrix to rotate into, and it comes with a 30-day money-back guarantee.

Always use any product as directed on its label, and keep placements out of reach of children and pets. Formulations and labels differ between markets and change over time; read the label of the specific product you buy.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →

June 10, 2026

The Best Roach Bait for 2026: A Complete Guide

Cockroaches are among the most resilient and unwelcome pests a homeowner can face. They contaminate food, trigger allergies, and multiply at an alarming rate. When it comes to eliminating an infestation at its source, roach bait remains one of the most effective tools available. Unlike sprays that only kill the roaches you can see, bait works by leveraging the social behavior of roaches to wipe out entire colonies, including the ones hiding deep inside your walls. Roaches walking past your placements? See the five real reasons in roach bait not working, then compare formats in our best roach killer powder guide.

How Roach Bait Works

Roach bait combines a slow-acting insecticide with an attractive food source. When a roach feeds on the bait, it carries the active ingredient back to its nesting area. Through a process known as secondary kill, other roaches are poisoned when they consume the droppings, saliva, and bodies of the roaches that ingested the bait first. This domino effect is what makes bait so powerful, allowing a single feeding station to eliminate dozens or even hundreds of roaches over time.

What to Look for in a Quality Roach Bait

Not all roach baits are created equal. The best products offer a high-attractant formula that roaches actively seek out, a potent active ingredient that ensures secondary kill, and a long shelf life so the bait keeps working for weeks. Ease of application matters too, whether you prefer pre-filled bait stations, gel syringes for precise placement, or granules for larger areas. Safety around children and pets is another key consideration, so look for products with tamper-resistant stations or low-toxicity formulas.

Roach Buster: The Best Roach Bait for 2026

After comparing the leading options on the market, Roach Buster stands out as the best roach bait for 2026. It delivers on every metric that matters: a powerful, fast-spreading active ingredient that maximizes secondary kill, an irresistible attractant blend that draws roaches out of hiding, and a long-lasting formula that keeps protecting your home for months. Roach Buster comes in easy-to-use, tamper-resistant stations that are safe to place in kitchens, bathrooms, and other sensitive areas around the home.

What truly sets Roach Buster apart is its proven track record. Users consistently report a dramatic reduction in roach activity within the first week, with most infestations fully resolved within a month. Combined with its affordable price and excellent value per station, Roach Buster offers professional-grade results without the cost of hiring an exterminator. For anyone serious about reclaiming their home from roaches in 2026, Roach Buster is the clear top choice.

Tips for Getting the Most Out of Your Roach Bait

To maximize results, place bait stations where roaches travel and hide: under sinks, behind appliances, along baseboards, and inside cabinet corners. Avoid using sprays or cleaners near your bait, as these can repel roaches and reduce effectiveness. Be patient and resist the urge to remove stations too early, since the secondary kill effect takes time to work through the entire colony. Finally, keep your home clean and remove competing food sources so roaches are drawn to the bait rather than crumbs and spills.

Final Thoughts

Roach bait is one of the smartest, most effective ways to eliminate a cockroach infestation for good. By targeting the entire colony rather than just the visible pests, a quality bait can solve a problem that sprays simply cannot. For 2026, Roach Buster leads the pack with its powerful formula, ease of use, and outstanding results. Pair it with good cleaning habits and strategic placement, and you will be well on your way to a roach-free home.

Watch our video guide below:

Where to Buy Roach Buster

Ready to get rid of roaches for good? Roach Buster is available to order directly online, with fast shipping and a satisfaction guarantee. Each order comes with easy-to-place, tamper-resistant bait stations designed to start working within days. Whether you are dealing with a minor problem or a full-blown infestation, Roach Buster gives you professional-grade results at a fraction of the cost of hiring an exterminator.

Buy Roach Buster Now

Next steps: how many sachets a full round actually takes, how to tell whether a treatment is working, and how powder, sprays and foggers differ.

How to evaluate any bait in five minutes

Bait marketing is noisy, but the number of properties that actually predict a result is small. Run any product through these five checks and you will make a better decision than any ranked list can give you.

Is it non-repellent? If insects avoid the treated area, nothing else matters. This is the single most important property and the one least often stated prominently.
Does it attract? A toxicant with no attractant relies on insects wandering into it. Attraction is what makes bait outperform dusts.
Is the action delayed? Fast kill at the feeding point prevents transfer back to the harbourage and encourages bait aversion.
How long does a placement stay usable? Gels crust and dry; dry formats in enclosed housings last far longer, which decides how often you have to redo the work.
How many placements can you achieve? Coverage failures cause more disappointment than product choice. Count your positions before you compare prices.

Format trade-offs at a glance

Format	Strength	Weakness
Dry sachet bait	Durable, no residue, enclosed, easy to place in quantity	Cannot be injected into a hairline crack
Gel bait	Precise crack application, fast uptake	Dries out, leaves residue, reachable in the open
Bait station	Tidy and contained	Bulkier, fewer positions for the money
Granular bait	Good for exterior and voids	Not suited to interior surfaces
Loose dust	Long-lasting in dry voids	No attractant, must be dust-thin, tracked and cleaned away
Aerosol spray	Immediate visible kill	Repellent, disperses populations, residue and odour
Fogger	Feels thorough	Does not reach voids, residue everywhere, scatters populations

The mechanisms behind those trade-offs are set out in our powder versus spray versus fogger comparison, and the placement counts that determine how much you need are in our coverage arithmetic guide.

Matching the product to the situation

Rented flat with shared walls. Non-repellent, odourless, enclosed. Repellency actively moves the problem between units.
Home with a dog or toddler. Enclosed format behind child locks, nothing in the open.
Commercial kitchen. No residue on food-contact surfaces, no ventilation period, easy to log and number on a plan.
Holiday let or second home. Long placement life, because nobody is there to reapply.
Population that has rejected a sugary matrix. Rotate to a different matrix; see our note on why treatments stall and populations return.
Large outdoor roaches entering a house. Interception at thresholds, garage and utility routes rather than dense kitchen placement.

The seven behaviours that decide the outcome

Place at harbourage and on travel routes, not at the sighting.
Remove competing food and water overnight.
Never combine bait with a repellent aerosol or fogger.
Keep placements dry.
Hold placements in position through the four to six week hatch window.
Inspect monthly and replace what has been consumed.
Treat neighbouring units in shared buildings, or expect recurrence.

Products differ less than behaviours do. A mediocre bait used correctly beats an excellent bait used sparsely in the wrong positions, which is why our progress guide focuses on reading the trend rather than on switching products early.

Questions people ask

Is the most expensive bait the best?

Compare cost per placement and reapplication frequency rather than pack price. A cheap product that needs replacing weekly is not cheap.

Should I rotate products?

Rotating matrices between rounds is sensible practice because it reduces the selection pressure that produces bait aversion.

How long should I give a bait before judging it?

Two weeks with correct placement and competing food removed. If monitors show traffic past untouched bait in that period, change the matrix.

Do I need a professional as well?

For persistent activity after two properly executed rounds, a multi-unit building, or a commercial premises with compliance obligations, yes. For a straightforward household problem, usually not.

The short version

Judge baits on non-repellency, attraction, delayed action, placement lifespan and how many positions you can cover. Match the format to the situation, then follow the seven behaviours, which matter more than the brand. One box of fifty sachets satisfies all five criteria for a whole home, with a 30-day money-back guarantee.

Always use any bait product as directed on its label, and keep placements out of reach of children and pets.

Ready to clear your home without odors or stains?

See the box and bundles

Use only as directed on the product label. Keep away from children and pets.

Treating an active infestation? One box treats one room, once. The 3-Box Kit — $120 (150 sachets, save $59.97) covers a full apartment through the complete 3-4 week treatment cycle; a $47 single box (50 sachets) covers a single-room problem. Ships within 1 business day, typical delivery 6-10 days · Free tracked shipping · 30-day money-back guarantee.
Choose your kit →

June 10, 2026

Category: Kitchen Baiting

The four signals that matter

What normal progress looks like, week by week

Signs it is genuinely stalling

Diagnosing a stall

A simple monitoring routine

What “finished” actually looks like

Frequently asked questions

I saw more roaches after treating. Is that bad?

Should I clean out the void where I see droppings?

How many traps do I need to monitor properly?

Is it worth switching products at day seven?

What if only nymphs are left?

The short version

Hour one: contain, do not panic-spray

Tonight: find out where they actually live

Also tonight: set traps, not treatments

Day two, morning: build the placement list

Day two, afternoon: treat properly, once

What normal progress looks like

The four mistakes that cost people a month

When to escalate immediately

Frequently asked questions

Should I move out for a few days?

Can I bomb the flat tonight and bait tomorrow?

Is it safe to eat in the kitchen while treating?

How many did I miss if I only saw one?

What if I am moving house next week?

The short version

Why sachet count beats square footage

Room-by-room coverage counts

Totals you can plan against

Work out your own number in ten minutes

Where people consistently under-buy

Treating the visible kitchen only

Ignoring the appliance cavities

Running out and stopping

A note on placement density

Frequently asked questions

How many sachets are in one box?

Is it wasteful to buy more than I need?

Can I use fewer sachets and just move them around?

Do I need more in an apartment building?

How do I know when to place the top-up round?

The short version

Why a laundry room beats a kitchen

The seven places to inspect

The lint problem

The clear-out, step by step

Where to place bait around a washer and dryer

Do not spray a laundry room

Apartment laundry rooms and shared facilities

Frequently asked questions

Can roaches live inside a washing machine?

Will hot washing kill roaches in clothing?

Can they come in through the dryer vent?

Why do I only see them in the utility room?

Treat the room, not the sighting

Ready to clear your home without odors or stains?

Water matters more than food

Heat, and the appliances that make it

Harbourage: tight spaces, not dirt

The food sources a clean kitchen still has

How they got in, in a clean home

A one-hour audit that actually changes things

Frequently asked questions

Can you get roaches in a spotless house?

Does cleaning more get rid of roaches?

Should I deep clean before or after baiting?

Why do I have roaches when my neighbours do not?

Stop treating it as a verdict

Ready to clear your home without odors or stains?

How they got in

Where they hide in a vehicle

The step-by-step clear-out

Step 1: Strip the vehicle completely

Step 2: Vacuum aggressively, then dispose of the bag properly

Step 3: Eliminate the moisture source

Step 4: Clean, do not fog

Step 5: Place dry bait in enclosed, out-of-reach positions