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 ...

Lightweight horticultural oils, such as Summit’s Year-Round® Spray Oil, control scale by coating and smothering pests ...

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 ...

Q: We have been successful in identifying an insect known as magnolia scale on our star magnolia (Magnolia stellata). Can you give us some advice on how to manage this insect to protect the tree? — ...

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 ...

Question: Help! I have a fiddle leaf fig in my front window that I adore. It has tiny bumps all over the stems and the floor beneath the plant is sticky. I did an internet search, and I believe I have ...

Dormant oil sprays are applied to plants during mid to late winter to control overwintering insects, often scales. Some plants infested by scale insects include lilac, dogwood, Euonymus, apple, pear, ...

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 have white spots that turn to a blackish mold on my crape myrtles. What is it and how do I get rid of it? Tricia, Tulsa. We addressed this issue in this column last year, but some of the ...

These strategies make future GSS development faster, less complex and less resource intensive, significantly expanding the ...