Go up into the attic and toss some of the roach baits into the wall openings that are open to the attic.
Do roaches live in walls and attics.
The treatment gets on the roach as it crawls around the insulation.
Cockroaches can squeeze through tiny cracks and crevices in exterior walls to crawl into a building and take up residence inside the walls.
You can kill roaches in walls very easily with safe nontoxic household items.
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Dusts such as drione and sprays such as raid can cover large areas and do not need to be ingested to take effect.
When the treated roach gets back to its nest and grooms itself it ingests the material and dies.
Sounds like you are off to a great start.
There they ll look for an attic vent or gaps between old shingles to come inside.
Poison comes in the form of bait dusts and sprays.
Once a cockroach comes in contact with the dust or spray such as crawling over it the cockroaches begin a slow death.
Flying cockroaches have the additional advantage of flying or gliding onto your roof from tree branches.
Other roaches that come into contact with the affected roach some even eating the dead roach will die as well.
Large roaches about 1.
Poison the cockroaches in your attic.
If you have asthma or another lung disease do this near an open window or outdoors.
If you are having a problem with roaches water bugs you should look at treating more than just the attic especially since the roaches are coming in from the outside.