Fumigation Chemicals We Use â Every Active Ingredient, Named Pest by Pest.
Most companies in Karachi will not tell you what is in the spray tank. This page lists every pest control chemical Karachi Fumigation Services uses, the pest it is used for, and what it actually does.
Why This Page Exists
You Should Know What Is Sprayed in Your Home
A common complaint about fumigation in Karachi has nothing to do with price. It is that nobody would say what was used: a strong smell, a headache, pests back in three weeks, and no name to look up.
So we name ours. What matters on any product is the active ingredient, the substance that does the work, and it is printed on the label of every container we carry. Brand names change with supply. The active ingredients below do not.
None of these are agricultural pesticides. Products made for crops are not formulated for bedrooms and kitchens, and we do not use them indoors.
How a product is chosen
- 1 The pest is identified during the survey, not guessed
- 2 The form is matched to the place: gel in kitchens, dust in voids, spray on surfaces, soil treatment for termites
- 3 Classes are rotated, so the pest does not build resistance
- 4 A low-odour (be-bu) product is used where the household needs one
Never used
- â Agricultural pesticides indoors
- â Unlabelled or loose chemicals
The List
Pest Control Chemicals, Pest by Pest
Several ingredients appear under more than one pest. The substance is the same, but the form and the placement change with the job.
Termite Treatment Chemicals
How they are applied: as a liquid barrier in the soil around and under the structure, injected through drilled points in floors and walls, on timber, and in bait stations. Termite treatment â
| Active ingredient | Type | What it does in this treatment |
|---|---|---|
| Fipronil | Phenylpyrazole, non-repellent | Termites cannot detect it. They pass through the treated soil and carry it back to the colony on their bodies. |
| Imidacloprid | Neonicotinoid, non-repellent | Also undetectable. Exposed termites stop feeding and grooming, and the colony weakens from the inside. |
| Bifenthrin | Pyrethroid, repellent | Binds tightly to soil and forms a barrier that termites turn away from. Used where a repellent zone is wanted. |
| Chlorantraniliprole | Diamide, non-repellent | Locks the jaw muscles, so termites stop feeding within hours of contact and die over the following days. |
| Noviflumuron | Insect growth regulator | Used in bait stations. Workers share the bait through the colony, and termites die when they next try to moult. |
Bed Bug Treatment Chemicals
How they are applied: together with heat treatment. Spray goes on bed frames, mattress seams, skirting and cracks, and dust goes into sockets, joints and wall gaps. Bed bugs fumigation â
| Active ingredient | Type | What it does in this treatment |
|---|---|---|
| Deltamethrin | Pyrethroid | Fast knockdown on contact, with a residue that stays active on bed frames, skirting and cracks. |
| Chlorfenapyr | Pyrrole | Slower acting, but it works on bed bugs that have become resistant to pyrethroids by shutting down their energy supply. |
| Imidacloprid | Neonicotinoid | Paired with a pyrethroid in dual-action sprays, so a resistant bug is hit in two different ways. |
| Clothianidin | Neonicotinoid | A second neonicotinoid with a long residual life, used in the same dual-action role. |
| Pyriproxyfen | Insect growth regulator | Stops nymphs from maturing into breeding adults, which breaks the cycle between visits. |
| Silica gel | Desiccant dust | Not a poison. It strips the waxy coating from the bug, which then dries out. Used in sockets, wall gaps and bed joints. |
Cockroach Control Chemicals
How they are applied: gel bait in cabinet hinges, behind appliances and under sinks, with residual spray for drains and entry points. Gel suits kitchens because it stays exactly where it is placed. Cockroach control â
| Active ingredient | Type | What it does in this treatment |
|---|---|---|
| Fipronil | Phenylpyrazole (gel bait) | Cockroaches eat the gel and return to the nest. Others die from contact with them and their droppings. |
| Indoxacarb | Oxadiazine (gel bait) | Becomes active only inside the insect, after it is eaten, then passes on to other cockroaches in the nest. |
| Imidacloprid | Neonicotinoid (gel bait) | A different mode of action from fipronil and indoxacarb, rotated in so the population is not exposed to one bait only. |
| Dinotefuran | Neonicotinoid (bait) | Fast acting. Another option in the bait rotation for heavy infestations. |
| Abamectin | Avermectin (bait) | Slower acting bait, kept in the rotation to prevent resistance building up. |
| Deltamethrin | Pyrethroid (spray) | Residual spray for drains, skirting, door frames and other entry points that bait cannot cover. |
Flea & Tick Treatment Chemicals
How they are applied: as a spray on floors, carpets, skirting and the places pets rest, pairing a product that kills adults with a growth regulator. Flea & tick treatment â
| Active ingredient | Type | What it does in this treatment |
|---|---|---|
| Fipronil | Phenylpyrazole | Kills adult fleas and ticks on contact in floors, carpets and resting areas. |
| Imidacloprid | Neonicotinoid | Quick kill of adult fleas, used alongside a growth regulator. |
| Deltamethrin | Pyrethroid | Residual spray for floors, skirting and cracks where fleas and ticks hide between feeds. |
| Pyriproxyfen | Insect growth regulator | Stops eggs and larvae from developing, which is what prevents the infestation coming back weeks later. |
| Methoprene | Insect growth regulator | Used for the same purpose as pyriproxyfen: it stops the next generation from developing. |
Mosquito Spray & Fogging Chemicals
How they are applied: as fogging for flying adults, and as residual spray on the walls and shaded surfaces where mosquitoes rest. Mosquito control â
| Active ingredient | Type | What it does in this treatment |
|---|---|---|
| Deltamethrin | Pyrethroid | Used in fogging and wall spray. Quick knockdown of adult mosquitoes. |
| Alpha-cypermethrin | Pyrethroid | Residual wall spray. Mosquitoes that rest on the treated surface are killed. |
| Bifenthrin | Pyrethroid | Barrier spray for outer walls, plants and shaded corners where mosquitoes rest in the day. |
| Clothianidin | Neonicotinoid | Long-lasting residual that still works where mosquitoes have become resistant to pyrethroids. |
| Broflanilide | Meta-diamide | A newer class of insecticide, used against resistant mosquito populations. |
| Pirimiphos-methyl | Organophosphate | Residual spray rotated with the others, so no single class is relied on. |
All six appear among the insecticides the World Health Organization recommends for indoor residual spraying against mosquitoes.
Rat & Rodent Control
Most of the work here is not chemical. We use glue boards and cage traps, and seal the entry points we find.
Where bait is needed, a rodenticide is mixed with food material and placed along the runs rats actually use, where children and pets cannot reach it. Rodent control â
Water Tank Cleaning
No insecticide goes anywhere near a water tank. After the tank is drained and scrubbed, it is disinfected with chlorine and potassium permanganate before it is refilled.
Both are disinfectants used in water treatment. Water tank cleaning â
Standards
What “WHO-Approved Chemicals” Means in Practice
You will see the phrase WHO-approved across this website, so here is what stands behind it. For pests that carry disease, the World Health Organization publishes the insecticides it recommends for spraying inside homes. Every product on our mosquito list is on it.
For termites, bed bugs, cockroaches and fleas, we use active ingredients that professional pest control companies rely on around the world for the same pests. Many of them are non-repellent, meaning the insect does not sense the treatment and carries it back to the others. Several are paired in dual-action products, which is what gets results against populations that ordinary sprays no longer kill.
A chemical is only one part of the job. It works when it is combined with finding the source, sealing entry points and fixing the conditions that attracted the pest. That is the difference between pest control and a single spray.
FAQ
Questions About
Fumigation Chemicals
Want to know exactly what will be used at your property? Ask before you book. We will tell you the product and the active ingredient.
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