Black spots on cherries
I have the same question as another person here. Our cherry tree has one black or dark spot on each cherry. It is quite remarkable. What could cause this and how do I address the problem?
Jefferson County Colorado
I suspect your cherries are infested with the cherry curculio. Here is a CSU Extension publication that discusses the pest and management strategies. https://bspm.agsci.colostate.edu/files/2013/03/Cherry-Curculio.pdf