Neem oil to help a Red Maple
Something's chewing on new growth at the top of my red maple, and I'm looking into my options. I can't get up there to tell for sure what it is. Someone said it looks like potato leafhopper damage.
I'm considering throwing some neem oil at it. Since the issue is at the top of the free (20 feet high), would it make more sense to apply the oil to the soil for a systemic effect? How would one go about that? Will it harm soil organisms?
Thanks for any advice. :-)