Both are caused by fungi, but they are not spreading between these two trees; serviceberries don’t get black knot and plums ...

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 and ...

Maeve asks: When is the recommended period of time to prune the vertical water sprouts out of my ornamental plum tree? Each year they grow several feet. Plum trees are recognized for their tendency to ...

As spring fast approaches, I find myself more obsessed with the trees than usual. I think it is because they are blooming so early that I can’t help but spot them from afar. One tree that is blooming ...

Winter is here and yet we’re still getting plenty of gardening questions to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU Extension faculty ...