Japanese apple rust, a disease affecting apple and crabapple trees, as well as junipers, left this spot on the leaves of a tree. The finger-like projections on the back of the leaf produce fungal ...

OKLAHOMA CITY – If your trees aren’t looking as green as normal, they may have become the victim of a fungus. Cedar-apple rust causes premature defoliation, reduces the quality of fruit and could ...

Due to periods of cool, wet weather, some apple and crabapple trees are infected with apple scab or cedar apple rust disease. Early symptoms include olive, brown, yellow or orange spots on leaves.

The leaves of my apple tree have odd spots on them. What is this and what can I do about it? Although there are other possibilities, cedar-apple rust is a possibility, given your description, the wet ...

QUESTION: Does cedar apple rust actually harm the cedar tree or is it just unsightly? We planted a crabapple tree nearby a few years ago, and now the cedar has a lot of those rust galls. If the rust ...