Q. I enjoy the Plant Medic column. Do you have any knowledge about the sad condition of crabapple trees in the Allen County area? Is there a blight going amongst them? A. Crabapples are native to both ...

The best way to avoid flowering crabapple tree problems is to select a cultivar that is resistant to the common diseases. Many of the new cultivars are resistant to or tolerant to scab, fireblight and ...

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 ...

Japanese apple rust requires both junipers and apples or crabapples to complete its life cycle, with spores carried by wind or rain to infect other plants. Japanese apple rust, a disease affecting ...