- Kill the cockroaches. There are a variety of do-it-yourself options for killing cockroaches. Some of the more well regarded of these are listed below. Try one at a time, or try them all.
- Make "Roach Food":
- One part powdered (not granular) boric acid (sometimes sold as a roach-killing powder, but often available in pharmacies (for making anti-pinkeye eyewash), one part white flour, one part granulated white sugar. The sugar baits it, the flour makes it stick, and the boric acid kills them. Place in the backs of drawers and cabinets, under refrigerator, stove, etc. Expect at least 3 cycles of disappearance/reemergence of progressively smaller hordes of cockroaches, lasting about 2 weeks each. Continue using boric acid till roaches are gone.
- Kids, dogs, and some other pets will eat this mixture. Boric acid is not highly toxic, but is for external useONLY, so place it where only the bugs can get it. It will cake hard in humid environments, so paper or foil trays may be needed.
- Dust with boric acid, flour and cocoa (1 part acid, 2 parts flour and 1 part cocoa). Try P.F. Harris Roach tablets. They contain boric acid and a lure. While still dangerous for kids and pets, this product is not as toxic as many insecticides, and the roaches aren't repelled by it so they drag it home and feed it to their hatchlings. Dust a fine coat in cupboards, under sinks, around toilets and any cracks, corners or hollow spaces. Avoid breathing the powder; like any acid, it can irritate the lungs.
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