I think we just had another bunch of mosquitos hatch or whatever it is called for this pesky bug. What I like to do is you a product called Cutter. After mowing the yard, I attach it to the house and starting my way on one end of the yard and sweeping across I spray it on everything. I go up into the trees, bushes and across the grass. It works extremely well and is pretty easy to do. It seems to last about 3 weeks or so. Just make sure to take a shower after in case you got any on you.