Diseased apple tree

[Steven Adkins]

We live in Southern California and may have a diseased Dorsett Apple Tree. The Leaves are turning dark brown around the edges and starting to drop. Also, the apples are much smaller than their previous yields. Are there any products we can buy or methods to employ for preventing disease and maintaining a healthy tree?

 

[Beth_B]

You've just posted two questions about possibly diseased trees...so I wonder if this is a pest or fungus common to your area? I'd take photos, or branches, to wherever your local experts are...independently owned garden centers, university extension office etc, and ask them. This could be a very localized problem, best addressed by people in the know right where you live.