Yep -- I spray everything. About 30 feet up into the trees, over the roof of the house, under the eaves, on the fence, over the fence, and I thoroughly spray shrubs & other ornamentals. As far as spraying the lawn, I don't spend much time there -- I just spray back & forth about 10 - 20 feet in the air & let it drift on the turf. While I move to the next section of the property, I usually spray about 40 feet up in the air, letting the product drift. Still no skeeter bites as of this afternoon. I almost always use a J-D9 spray gun at about 400 psi (tall tree gun if them skeeter piss me off), and I put the 'county boys' to shame regarding skeeter control. The county sprays insecticide which also kills beneficial bugs (and it doesn't last) -- even lightning bugs, which we are fond of. How long do we see a difference? No bites after about 15 minutes, cuz the cowards quickly find 'greener pastures' at the neighbor's properties.