I have two plum trees, a Toka and a Superior, that are very healthy and...
I have two plum trees, a Toka and a Superior, that are very healthy and produce a lot of green plums, but before they ripen when still quite small, the immature plumbs turn purple and fall off leaving almost no mature fruit. I believe this is due to the plum curclio insect. I do see the half-moon scars on the immature fruits. Do you have any recommendations? When I have gotten plums, they are delicious and I really would like to get reliable crops each year.
Hennepin County Minnesota plums
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I did not see a link in your response to my question, as you indicated. Please respond again with the link. Thank you.
I am sorry, here it is, you can drill down to the proper area but feel free to peruse the rest of the information.