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Borers
Borers are chewing insects, usually in larval stages, that chew and feed on the inner bark and/or wood of trees. Most species are the larvae of beetles.
Elongate Hemlock Scale
Elongate hemlock scale is an armored scale pest with a hard, waxy coating. Small, oblong, flattened insects appear on lower needle surfaces.
Botryosphaeria Canker and Dieback
Botryosphaeria canker is a fungal disease that infects many trees and woody shrubs, especially if they are already stressed or weakened. It causes cankers and dieback.
My Tree Was Struck By Lightning. What Do I Do?
Lightning can injure trees to the point that they need to be removed for safety. But, let’s dig a little deeper into what could be going on with your lightning-struck tree.
How to Spot—And Protect—Trees from Lightning
What exactly happens when lightning strikes a tree? Learn that and how to tell if a tree was hit by lightning. Plus, you can protect your trees from lightning damage.
Birch Leafminer
Birch leaves develop brown, inflated blotches by mid to late spring. Leaves may be killed by small larvae inside the leaves that devour green tissues between the upper and lower surfaces.
Twig Girdler and Twig Pruner
Twig girdlers and twig pruners are beetles that attack the twigs of trees. They lay eggs at the ends of branches and cut off the tips of the branch, allowing the larvae to feed on and pupate inside the twigs.
Persistent Rain Can Cause Tree Root Rot, Early Leaf Drop
In this 90.5 WESA article, Rob Kruljac of Davey's Pittsburgh office talks about the problems persistent rain can cause for trees.
Bagworms
Bagworms are destructive pests of shrubs and woody ornamentals that are native to North America. Their spindle-shaped protective bags made from silk, debris and foliage provide camouflage, so they go unnoticed until there is significant plant damage.
Oak Galls
Oak galls are abnormal plant growths found on foliage and twigs that are produced by small oak gall wasps. Shapes of galls vary from spherical to urn-shaped to star-shaped to fuzzy. Inside the galls are the eggs and larvae of the insects.
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