Bob writes
Bifen I/T is our most popular choice for mosquito control. This is a water based bifenthrin resdiual insecticide that provides around a 30 day residual outdoors. Bifen XTS uses the same active ingredient bifenthrin but a higher oil based concentration. For general residential mosquito control, the XTS higher concentration is typically not necessary unless you live in a region that experiences high amounts of rainfall. Bifen IT would be recommended over Permethrin SFR 36.8% due to the the active ingredient permethin breaking down quicker in sunlight requiring repeat applications every 2 weeks where Bifen IT and Bifen XTS provide a residual of about 30 days (weather depending) The most important thing to remember when treating for mosquitoes is that they hang out on the underside of leaves and shrubs during the heat of the day so focusing on those areas when spraying is recommended. Thoroughly spray the foliage of all bushes, trees, and shrubs around the home or areas in the yard where you socialize. It’s also recommended to spray along any tree lines that may border your property as well as the exterior perimeter foundation, under eaves, overhangs. ember to not only treat the main bush or shrub but also the underside of the leaves. View our Mosquito Treatment Guide for more information.
Answer last updated on: 05/23/2010
