You might Google Diatomaceous Earth (coarser than what they use in pool filters) for some interesting pesticide reading. It has long been used as an insecticide (the horticultural grade). It basically draws out moisture & dehydrates/kills insects with exoskeletons when it comes in contact with their outer body. All they have to do is crawl through it. Harmless to humans and pets except in respiratory-weakened people. They recommend using a mask when applying. I think you use a powder mister to apply the dust to the desired area.
The downside to DE as an insecticide, is that it makes no distinction between the "bad bugs" with exoskeletons and the "good bugs" with exoskeletons. Kills 'em all, even some bees.
I know some dog owners who use it for chemical-free flea control both inside and in their yards. Needs to be applied during a dry spell, as it doesn't work after it gets wet and clumps up.
Have not tried it myself yet, but would like to try it to get rid of the billbugs in my back yard. I have two rat terriers, a breed known to be hyper sensitive to insecticides. They're getting out of hand & I've been reluctant to use Spectracide or Diazinon due to my dog's problems with conventional chemical treatments. Poor things don't even tolerate Frontline flea treatments on their necks monthly very well.
RE: Roaches. Boric acid powder dusted lightly along your baseboards and in the crevices of cabinets and behind large pieces of furniture will flat out do the job. All they have to do is walk thorough it and get it on their hairy legs. Roaches lick their legs to groom/clean themselves and ingest it & die. They also carry on those hairy legs back into the walls and dark, damp hiding places where the nests are so that the rest of the colony is also killed in a like manner. It'll clear a house of them for 1-2 years! I'm a former Galvestonian and trust me, the island has long been infested with roaches forever. Believe me when I say pure boric acid from your local WalMart pharmacy department will flat kill them!
Edited by buttoni, 16 April 2009 - 08:23 PM.
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