July PCs again
I thought I finally had this problem licked with successive cover sprays of acetamiprid on my Stanley plums. But a week or so ago, with JB pressure building on cherry and plums, I switched to permethrin out of concern for the nearby bees.
Now I'm seeing the drop starting, with fresh PC scars and lots of sap drops visible on the fruit in the tree.
Everyone says this can't be a 2nd generation, but I still can't see how it's anything else. [It's definitely PC, I sent in some larvae to the lab to have them IDd.]