Possible Monilinia infection periods from April 25 to April 27 - Cooperative Extension: Maine Wild Blueberries - University of Maine Cooperative Extension

I have reports of cups and pinheads around the barrens in Hancock and Washington counties, including township 24 and 25. I expect most areas now have active cups unless the field is a later developing one. The blueberry plants are susceptible until the cups start to dry up and finish in your field. We had read more