Black Knot
Black knot is a disfiguring and potentially lethal disease of trees and shrubs in the genus Prunus, such as plums and cherries. This factsheet describes symptoms and management.
Diseases & Disorders
Sudden Oak Death
Sudden oak death (aka Ramorum) is mostly in California, but can be spread on a variety of nursery plants. This disease should be reported immediately. Learn what to look for in this factsheet.
Mistletoe
Hanging high in trees in warmer climates, mistletoe is a plant that has a long history of myth and tradition dating back to ancient times. To find out more about this interesting group of parasitic plants, read this article…
