In November 2010 we planted an apricot tree. June 2011 we got the first apricots and they were delicious and the tree gave too much abricots. This year the leaves started to get black and we fertilized it and we put some medication but still no progress. What can I do? Thanks.
An Apricot Tree
Certified GKH Gardening Expert
If the leaves are turning black, it is likely a fungus.
If the leaves are a powdery black, this is a fungus called sooty mold. It is typically accompanied by a pest infestation by either aphids or scale. If you suspect sooty mold, treat the tree with both a fungicide and a pesticide. Neem oil is a good choice for this as it is organic, both a fungicide and a pesticide and is safe for people and pets (and therefore consumption).
If the black is not powdery, then it is likely another kind of fungus, such as black spot, but there are several that cause black leaves. They can all be treated with just a regular fungicide.