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 ...

Q: I have a 3-year-old Burgundy plum tree. The leaves became yellow in March so I applied KeRex iron to the soil when I first noticed the problem. Now the new leaves do not show any yellow in them, ...

Your plum problems could have a variety of causes. As you discovered, plum trees’ early spring flowers are vulnerable to late frosts. It is best to locate these trees in full sun and away from ...

When should I spray my purple-leaf plum tree for the mites and disease they seem to get every year? A: That is a problem-prone tree, in my opinion. The dark leaves are nice, but it usually ends up ...

For the past two years, my plum tree has produced plenty of fruit, but they all drop off while still very small. What am I doing wrong? – P.L. Samuels, Norfolk Do we have a plum tree? We thou… ...

If your plum tree is bleeding sap, it may be affected by canker, or by other forms of fungal or bacterial diseases, like pseudomonas.

Knowing how to grow a plum tree from a plum stone is surprisingly easy. It simply requires patience, and some care and attention. The satisfaction of a bumper harvest is just reward when growing ...

The most common plum tree diseases include black knot, plum pocket, brown rot, plum pox virus, perennial canker, and bacterial leaf spot. Control of black knot requires both prevention and sanitation.

A common fungal disease of cherry and plum trees is widespread in Greater Columbus, likely worsened by the abnormally wet conditions experienced locally both this spring and last spring. Black ...