While the fungus primarily attacks cherry and plum trees, it can also infect apricots, peaches and any tree or shrub in the Prunus species, including ornamental cherry species.

Plum pocket results in formation of distorted, light green, bladder-shaped fruit. Although these diseases become visible on our peach trees in the spring, the treatment window is fall, after leaf ...

M.H. Dark, rough swellings on (mainly) plum and cherry trees signify the presence of black knot, a fungus disease. In spring, the knots form spores that spread to infect young growth in wet weather.

Early in spring this year I purchased a plum tree (bare root) which had grown to perfection, a month ago, I noticed a light invasion of tiny black insects. These were treated and all was well.

If you have cherry or plum trees, now's a good time to check for a disease called black knot fungus. The fungus can go unnoticed with summer foliage but is apparent when trees are winter-bare.

Black knot, a fungal disease, is affecting cherry and plum trees in the Greater Columbus area, likely due to recent wet weather. The disease causes hard, black knots on branches, disrupting growth ...

Black knot, caused by the fungus Apiosporina morbosa, has been identified in several cherry trees in Columbus. While the fungus primarily attacks cherry and plum trees, it can also infect apricots ...