3 ms·
> Bed bugs are practically immune to DDT. I looked into this a few years ago because DDT seemed like a perfect fit for the problem. (Mattresses are indoors, eas
by joecool1029 9y ago
> Bed bugs are practically immune to DDT. I looked into this a few years ago because DDT seemed like a perfect fit for the problem. (Mattresses are indoors, easy to saturate and used for more than a decade.) Turns out the LD50 for DDT is like 100000 ppm.‡ Think about that. Ten. Percent. Of their body weight.
Ugh, noted. Thanks for the correction. I am aware of some resistance among specific mosquito species as well, but the residual repellant effect still makes it crazy useful for application on screens, nets, and tents.