Hi
I have a 5 year old apple tree, (there are about 20 apples on it right now)
At first glance I thought it was suffering from rust, but a closer look
revealed rust-colored spots on the leaves where something has punctured the
leaf right through the center and there are "bristles" (legs?) on the
undersides of the leaves. What is this and what can I do to get rid of it?
The fruit is untouched. If there is a place to post picture I will.
Thanks

Barbara