Hi, I read your post to my husband, a retired treeman, and he said dormant oil sprayed in the spring time would be his choice. It doesn't affect the lake unless you are spraying trees on the water's edge, because it is oil.
His company used Cornell's Ag school for help in different areas sometimes.
You could also look up how to make your own home remedy for certain trees, but as he says, everything gets something.
Good luck~
Last edited by marinewife; 08-14-2022 at 09:39 PM.
Reason: spelling
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