Thanks, but this article doesn't really answer the question. The article states, "While the failure to feed that occurs through repellency may also provide enough selection pressure to engender resistance, this phenomenon has never been documented and must be examined further."
I can still see a selection mechanism that might confer local resistance: if some mosquitoes that aren't very susceptible to the repellent effect come along, they will succeed in feeding on humans, while all the other mosquitoes may fly further afield seeking animal hosts. Over time, there could be local, village-based populations that feed on humans, and non-village populations that don't. Call it "spatial selection" or something. Joe > From: Ashwani Vasishth <[EMAIL PROTECTED]> > Subject: Re: DDT question > > The actual research article is at: > > http://www.plosone.org/article/fetchArticle.action?articleURI=info:doi/10.1371/journal.pone.0000716 > > For those who don't have access to Nature, a news > summary is at: > > http://www.scidev.net/content/news/eng/ddt-repels-rather-than-kills-mosquitoes.cfm > > Cheers, > - > Ashwani > Vasishth [EMAIL PROTECTED] > (818) 677-6137 > http://www.csun.edu/~vasishth/ > http://www.myspace.com/ashwanivasishth ____________________________________________________________________________________ Got a little couch potato? Check out fun summer activities for kids. http://search.yahoo.com/search?fr=oni_on_mail&p=summer+activities+for+kids&cs=bz
