Water-soaked black and brown spots on plant leaves and stems often indicate a fungal or bacterial disease is the problem.

Please advise what I can do about my azalea bushes. The tops of the leaves are covered with tiny white spots and the undersides of the leaves are covered with reddish brown spots.

A: These small, black spots are on the back or underside of the leaves, which makes me think those are the shells of old lacebugs. It is much easier to manage azalea lacebugs in spring or summer ...

Answer: Check the undersides of the leaves. If there are lots of brown spots, the plants are infested with lace bugs, which suck the juices from the leaves. That causes […] ...

The leaves on several of my azalea plants have turned yellow and are dropping. I have been told that it may be root rot due to the past heavy rains, but the azaleas are planted on raised beds ...

A: Some of my shrubs also have flowers. Previous warm weather prompted the early blooms, but this week's chilly snap slowed swelling buds. While the average peak time for blooms is the first half ...