Pyracantha

Hi everyone. My pyracantha is losing leaves at the top. What might be the problem?

First thought is that the soil is either too wet or too dry.

Hard to tell with out some photos. 3 out of 4 of mine have pyracantha Scab on the leaves, its a fungus and will kill the trees. Starts in the winter in the garage. Daconil does a good job on it after defoliating all the diseased leaves of the tree. I spray every week until well after the trees leaf out again. I tried in the fall before I put them away. Will switch to spraying them during the winter when I water. Check these out:

Colorado Bonsai – Pyracantha Diseases

Colorado Bonsai – Losing Trees: Pyracantha Problems