Are your garden plants stunted, shriveled, yellowing, or curling at the leaves, despite your best efforts to keep them alive? Check the undersides of the leaves, and you might find the culprit: large ...

Crape myrtles are commonly attacked by crape myrtle aphids. This often leads to a black fungus, called sooty mold, forming on leaves and branches in mid- to late summer. Control these insects by ...

Some of the leaves on my serviceberry and hawthorn have an ugly black residue on them. When I looked more closely at the trees, I noticed some things that looked like little cotton balls here and ...

Q: The new growth at the ends of my roses came out small and curled. Now the same thing is happening to my Meyer lemon tree. A: This time of year, when it’s cool, are when aphids are a big problem on ...

Question: I think my peach tree has aphids, but how can I be sure? A: Green peach aphids are the most common aphids on peach trees. They are small and can be difficult to detect, but their damage is ...

Garden columnist Dan Gill answers readers' questions each week. To send a question, email Gill at [email protected]. My problem is with black stuff on my crape myrtles' leaves and bark. It ...