I've noticed several of my black beans plants have mold on them. It has been very dry. We are in upstate NY. What shoud I do?
Mold on My Black Bean Plants
Certified GKH Gardening Expert
It is sooty mold. It is a symptom of a pest problem. I recommend neem oil to treat it. It will kill whatever pest is on the plant and treat the sooty mold. Plus, it is organic and safe. Here is more information: