I second boric acid. Works wonders. You don’t need much, just sprinkle a little in the cracks and crevices where they crawl, and your problem is solved. It dries them out and they die, but not before they carry it back to their nesting areas, where it kills the others. At least this is how it was explained to me.
Food attracts them. No food and they won’t invade, or stay, if one of them happens to do a walk thru of your place to check it out. So, clean up after meals. Eat only at the dinner table. No eating on the sofa, no pet food on the floor, etc. Crumbs attract them. If I see one cockroach, I squish him. If I see two, out comes the boric acid. A one pound container you pick up at the pharmacy will last forever. I’ve had mine for 30 years. It never expires AFAIK.
Anyhoo, check it out on the web, youtube, etc. Heed all the warning advice, then go to town and get rid of your roaches forever! Good luck!
boric acid is poionous to pets and children.
careful
Hey LibWacker
Wacking cockroaches must be like wacking libs.
satisfying