Scale insects can infest and damage many of the plants we grow in our landscapes and indoors. They feed on the sap of plants, and a large enough population can weaken a plant, damage it or even kill ...

Oystershell scale is a very secretive little insect that usually goes unnoticed. But despite it’s tiny size, this insect can cause significant damage in trees or shrubs. Some gardeners aren’t even ...

Q: Everything under one of my large potted plants on the patio is turning black. What isn’t black is sticky. What is wrong with this plant? A: From the pictures you sent me, we know that the black ...

Maple trees in urban environments show signs of stress due to the urban heat island effect. Impervious surfaces like pavement retain heat and disrupt water absorption, stressing trees and making them ...

Late fall and winter are the best times to find and control scale insects on trees and shrubs. Even then, excellent powers of observation are needed to recognize their protective structures. These ...

“I want to get rid of mealybugs on my 20-year-old ponytail palms. Is there any way to save the plants?” asks Birds & Blooms reader Deborah McCullough of Myrtle Beach, South Carolina. Horticultural ...

DEAR JESSICA: I have a gardenia plant that I am attempting to overwinter indoors, but it has developed a white substance on the leaves. I also noticed quite a few ants nearby. I’m not sure what this ...