Quick Scoop
Exterminators usually use a mix of **gel baits, insect
growth regulators (IGRs), residual sprays, and dusts** for roaches. In some
cases, they also use **boric acid, fipronil, pyrethrins/pyrethroids, or
hydramethylnon** , depending on the infestation and the roach species.
What they use
- Gel bait: Attracts roaches so they carry poison back to the nest, which helps hit the colony, not just the bugs you see.
- IGRs: These stop roaches from maturing and reproducing, which helps break the infestation cycle.
- Residual insecticides: Applied in cracks, crevices, and baseboards so roaches pick up the treatment later.
- Dusts: Used in wall voids, behind appliances, and other hard-to-reach hiding spots; common dusts include boric acid or similar products.
- Other professional insecticides: Some exterminators use fipronil, hydramethylnon, or pyrethrin/pyrethroid products in targeted ways.
What matters most
A good exterminator usually does more than spray.
They inspect, identify the roach type, place bait where roaches travel, and
focus on hiding spots so the treatment lasts longer.
Safety note
Professional treatments should be used carefully,
especially around kids and pets, and some products require staying out of
treated areas for a while. If you want, I can also give you a simple
**homeowner-safe version** of what to ask an exterminator before treatment.
