According to Wikipiedia ( http://en.wikipedia.org/wiki/Bedbug#Traditional_control_methods), "herb and seeds of Cannabis" has been used traditionally to control bedbug infestations. It doesn't say exactly how it was used, but my guess is that people used to roll that sh-t up, light that sh-t up, and smoke it. To keep bedbugs away, ya know. Smoke from peat fires was also mentioned in the article.
So what I'm getting at is that if the powers-that-be are serious about controlling the bedbug problem, then it is time to end the failing, selectively enforced, immoral, and downright wrong war against marijuana. To, you know, keep bedbugs away.