Remember that 'half-life' means that half of it is gone in that time; half of that is gone in the same time; etc. So 3% is left after five half-lives; that's 400 to 1200 days to get to 3%. I use permethrin in the coop, and nothing outside. Beneficial insects, like bees and butterflies, are important too. Mary
thanks
i dont think that would have stopped our enormous problem but still id rather have the ants now than the chemicals. And we still have ants in the yard as it is, it didnt even kill them! Lol ive never used insecticides ever before this and wish i never had. At least they arent in the coop now. I got a headache just from accidentally breathing the stuff in i think! Thank you for explaining the half life also!