I bought 6 moth ball waffer hanger doo-hickies from Wally World and hung them up in the tree Thursday after work. I noticed Friday evening that the squirrels (2 of them now chomp on my pears) had broken off a limb of the tree. The limbs are already heavy from the weight of the pears. The squirrels jumping on them over-burdened the limb.
Anyway, I wondered if the mothball waffers worked. Well, yesterday, I noticed that practically all of the mothball waffer has disappeared. I think the sun is causing it to evaporate or something. That's why the squirrels probably didn't even notice the scent.
Now, it's time for plan B.
Todah