Many customers use Bifen IT for mosquito control in their backyards. Mosquitoes feed on plant juices. You find them on the leaves of plants, bushes, and trees. Try to spray the underside of the leaves. Remember that Bifen IT is non-selective and will kill the good guys such as bees and butterflies so avoid spraying any flowering parts because that is where the bees go. We need to save the bees!!! The 3/4 gal size is the best value, but consider the one gal container because it has a tip and measurement device. The tip and measure makes life easier when mixing.