Mike from Mercer, Wisconsin writes
It's pleasant to watch the dragonflies gorging on mosquitoes as they fly around the yard and help us out as they feed. Since my wife already sprayed most of the turf, I hope the dragonflies (quite large ones) are not affected by alighting on the grass.
The Bifen IT is not a selective insecticide so were a dragon fly to land on a surface sprayed with the Bifen it could die from it. It can help to avoid main landing areas for the dragonflies if you do not want to lower the population around the home.
Answer last updated on: 06/05/2014