OK, here's the deal, in my backyard there are 3 asian pear trees and squirrels always get at them. They climb up and nibble, knock them (the pears) down, and so forth. I don't really care, but my parents do. They told me to look online, to find a way to prevent this. So my first thought wold be to ask you guys. So what you think? For the longerst time, they've tried to figure out how to keep squirrels away from the tree. So any advice would be good, thanks!