Is this apple scab?
this is a honeycrisp tree that we have had for four years. The first year was the only time we got edible apples. It's supposed to be disease resistant, but obviously not in this case. It doesn't exactly look like apple scab to me, so I would like a second opinion. Is there anything I can do in Spring to save the tree?
Hennepin County Minnesota
It looks like one of the fungal diseases. Resistant doesn’t mean immune and hot, humid weather promotes fungal infections. Apple trees survive Apple scab even when it happens every year. Control measures help to reduce the severity next year. One always hoped for perfect weather.