A black stem borer (Xylosandrus germanus) on a green leaf

PEST ALERT: Ambrosia Beetles

As temperatures warm in spring, a tiny, destructive pest emerges along with the new leaves on trees and shrubs. It’s the ambrosia beetle. And although its name may sound innocuous, the ambrosia beetle kills thousands of trees throughout Northern Virginia every year. In this article, we cover the facts about this devastating pest, including: The…

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two-spotted spider mites and webbing

Spider Mites: Symptoms, Prevention & Control

Spider mites cause stippled and yellowing leaves, defoliation, and can kill plants and trees. Learn what to look for, how to prevent infestation, and how to control spider mites.

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Leaf-Eating Caterpillars: Eastern Tent Caterpillar, Gypsy Moth, Fall Webworm

These destructive caterpillars defoliate trees in northern Virginia. Learn about their appearance, timing, damage, preferred trees, and how to control them.

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tent caterpillars on web in tree

Five Destructive Insect Pests That Attack Trees in Northern Virginia

How to identify five common insect pests, when they’re active, signs of damage to look out for, and how to prevent or control them to keep your trees healthy.

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