Generally scab is not an issue for me, but I assume it is what I have currently. This spring has been abnormally damp, overcast and somewhat cool temps. I have 5 Maslin Apples (sp of Cripps Pink) that I planted this spring. Trees started out well no signs of disease early. I have sprayed them with Captan twice. One tree is progressvely getting worse. Dark spots on leaves, starting underneath. Veins turning brown on some leaves, eventually leaf progressively turns dark brown. If it is scab will routine spraying stop the spread within the infected trees? Hopefully I can post a picture within the coming days.
Here are a few pictures of the problem. I do know the tree has a touch of CAR. I guess it was the darkening of the veins and the larger brown patchs tha thave me puzzled. However the larger brown patchs might just be environmental stress induced by high wind and sun. I see now that Captan is only preventative and should have been applied more frequently given our abnormal weather this spring. I assume if I continue to spray Captan that it will protect the uninfected leaves? Thanks!
