I have about 32 Mature Leyland Cypress, 8 White Pines and 3 Blue Spruce I am going to be trying to Spray for BagWorms this year. Question is with what, and how?? I have about 25 trees with no infestation last year and the rest have from minimal to moderate bags. I can't really tell if they are a few years old, or active? I pulled a couple down and tore them open to see if I could see anything in there, they were empty (am I ********?) I hand harvested hundreds about a month ago. Now then, need to come up with a sprayer that will reach about 20-25 feet and not break the bank. Any suggestions on something that will do the trick and make sense for a homeowner to use 2, maybe three times a year to hit the trees and make sure I don't get eaten by these things....... I'm planing on applying BT twice in the next two to three weeks, then Sevin once or so. Any suggestions on if that is good, or is there a better plan?