Before you become a light snack to the ill effects of big dog bites..........answer this one simple question. What Insecticide are you applying for these spittlebugs???
I don't have spittlebug problems here in my area but after reading and research, if you are having adult bugs present, then your insecticides will not effect flying insects as they are avoiding the poison. All you are doing is controlling the nymphs and remotely the eggs. Again--What insecticide are you using as this will effect the outcome of the problem.