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Tree Insects
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Updated: December 1, 2022
Crapemyrtle Bark Scale - A New Problem for Home Landscapes
Crapemyrtle bark scale (Acanthococcus lagerstroemiae) is a non-native type of soft scale insect that can be difficult to manage.
Updated: August 16, 2022
IPM - Prevent, Identify, and Manage Plant Problems
How to ID, prevent, and manage plant problems in Maryland using IPM
Updated: December 14, 2022
How Do You Decide When to Remove a Tree?
Factors to consider when removing a tree.
Updated: December 14, 2022
Bagworms on Trees and Shrubs
Needled evergreens are the preferred host of bagworms but don't be surprised to see the bags on the branches of shade trees.
Updated: November 29, 2022
Ornamental Cherry Trees: Identify and Manage Problems
Prevent, diagnose and manage ornamental cherry tree problems
Updated: November 9, 2022
Why Oak Trees are Declining or Dying
Oak trees are declining for a variety of reasons.
Updated: November 1, 2022
White Prunicola Scale
White Prunicola Scale (Pseudaulacaspis prunicola) is a non-native type of armored scale insect that can be difficult to manage.
Updated: October 25, 2022
European Hornets
The European hornet is the only true hornet in the United States. The notches on the abdomen distinguish it from the Asian Giant Hornet ("murder hornet"), which is not present in Maryland.
Updated: September 30, 2022
Ambrosia Beetles on Trees
If tiny tubes of dust appear at about 3 feet above the ground on the trunk of dying trees, ambrosia beetles might be the cause.
Updated: September 22, 2022
Spongy (Gypsy) Moths and Caterpillars on Trees
Caterpillars of spongy moths are a serious pest of oak trees in Maryland.
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