Insect & Disease Resource Center
Browse More Pests and Diseases
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Beech Leaf Disease
Beech leaf disease (BLD) is a mysterious disease that is currently contributing to a localized yet significant decline of beech trees.
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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. A severely infested tree canopy takes on a tan-brown appearance and defoliates prematurely. Repeated years of infestation can cause branch die-back and leave trees more vulnerable to borers and environmental stress.
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Black Turpentine Beetle
The Black Turpentine Beetle is a common pest that affects pine trees throughout the United States.
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Black Twig Borer
Black Twig Borers are a species of the ambrosia beetle group that are small, round and dark brown/black in appearance.
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Black Vine Weevil
The black vine weevil is a destructive insect that kills host plants by feeding on their foliage. Larvae are white, C-shaped grubs that feed on plant roots and bark cambium, resulting in yellowing and wilting of foliage, and plant death.
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Tree 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.
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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.