Apple tree diseases
I have four old apple trees at out home we purchased late last summer. In the last 2-3 weeks, it seems they have all contracted some disease
All the leaves across two of the trees have small bright yellow bumpy spots over 55-65% of the leaf. I have pictures, but cant figure out how to post them to this forum. Here is a link to one on another site:
The trees had been fruiting in the spring and we had sprayed a general fungicide and insecticide in March and April but nothing since.
All four trees underwent a very large pruning in March as they had not been trimmed in 5-6 years and had gotten unwieldy.
Any help appreciated.