Become a Plant Crime Scene Investigator (CSI)! Learn about key plant diseases and insect pests that can cause problems for favorite trees and shrubs in the landscape.

There is nothing quite as exciting as a flowering cherry tree (Prunus spp.) beginning to bloom after a long cold winter. So it is quite disappointing to see flowers and leaves start to suddenly wilt, or oozing from cankers on the stems and trunks. Prunus species and varieties are prone to a number of common diseases and insect pests that over time can weaken or even kill a tree. This online course will cover identification of blossom brown rot, bacterial canker, cherry mottle leaf, shothole (coryneum blight), cherry bark tortrix and tent caterpillar. Non-chemical management methods will also be discussed.

Cost: $35
Register online or by phone (206-685-8033)