Recovering from a Black Cherry Aphid infestation.
I have a Bing Cherry that got devastated by Black Cherry Aphids. They were very difficult to get rid of. It was a constant battle using insecticidal soap and neem. Most insecticides are banned in Ontario. After several weeks I finally rid myself of the aphids and ants that caused the problem.
Issue is, the tree has no viable leaves left, and doesn't appear to be growing any more. Leaves have all turned yellow, and it looks the way it normally would if it was fall and going dormant. The branches still appear healthy and full with good color, but there doesn't appear to be any more releafing happening after the battle.
A couple of questions. Should I remove all the damaged leaves, and what can I expect from the tree for the rest of the year? Will it recover next spring? I'll try to post some pics later.