Diseases and Pests in Virginia (VA)

Ambrosia Beetle

Ambrosia beetles have a broad range, but are most abundant in the southern and eastern regions of the United States.  The term ambrosia beetle refers to a number of species of the insect, 40 of which are native.  Several are … More…

Aphids

Aphids are one of the most common insects found on trees and shrubs. There are more than 400 species of aphids that feed on numerous hosts, creating sticky honeydew that can coat any surface underneath the tree or plant that is infested. More…

Apple Scab

Apple scab is a foliar disease that causes infected plants to lose their leaves prematurely. Although unsightly it is rarely a cause of tree death. More…

Ash Plant Bug

Ash plant bug is rarely a fatal insect infestation, however the curling and discoloration on the leaves can be disconcerting. More…

Bacterial Leaf Scorch

Bacterial leaf scorch causes rapid dieback in sections of valuable shade trees. Although not curable, the symptoms can be supressed using antibiotics. More…

Calico Scale

Calico scales produce large amounts of honeydew in the spring which can coat tree leaves, branches, sidewalks, and cars More…

Chlorosis

Chlorosis is a common problem of urban trees. It is in these environments that trees struggle to make chlorophyll and threfore become yellow. More…

Diplodia Shoot (Tip) Blight

Diplodia tip blight (formerly known as Sphaeropsis tip blight) is a fungal disease that kills the tips of the branches of pines, and less frequently spruce and firs. More…

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