Plant Pest Library

Sunscald

Sunscald is a very common problem found on young, thin barked ornamental trees. [...]

Dutch Elm Disease

Dutch elm disease is a vascular wilt disease caused by the fungus Ophiostoma ulmi. [...]

Stem Girdling Roots

Stem girdling roots are roots that grow around the base of the tree. [...]

Magnolia Scale

Magnolia scale is a large soft-scale insect native to North America, with the female getting as large as 1/2 inch in diameter. [...]

Fire Blight

Fire blight is a bacterial disease which can affect a wide variety of ornamental trees, particularly in the Rose family. [...]