That is true about the traps unless you set them in someone elses yard....lol just kidding. I live out in the middle of no where. Never had them before. There are about 10 new leaves on the top of the tree. Too big to spray, course now they have moved on to the other birch. Not sure there is a good option for control. They eventually are grubs in the ground but where? I live out in the middle of nowhere so how much grub control would you have to use? 5 acres? more....sides I have chickens and ducks, dogs, and me...lol