On Sep 7, 5:26*pm, (Don Klipstein) wrote:


*The Boric acid won't deter the rats, but will wipe out the roaches.
It isn't poisonous, but interferes with there reproductive system.

* Wiki says it has a toxic effect on roaches if eaten by them, and it
also mucks up their exoskeletons.

* My experience is that Combat and similar roach baits are somewhat
effective.

* Also in my experience, little else easily available kills roaches except
brute force, heat, and getting them wet with organic solvents.
--
*- Don Klipstein )

Here's a DIY recipe for a guaranteed killer roach bait.

1/4c boric acid
1/4c flour & corn meal mix
2 tbs bacon grease
1 tsp sugar
1 tsp minced onion.
Add just enough water to make a semi-stiff paste.
Roll in small balls and place under appliances, in cabinets, closets,
etc. (anywhere pets can't get them).