WSU Extension

Hortsense

Viburnum
 
Disease
Bacterial blight (Leaf spot) 
Leaf spot 
Powdery mildew 
Ramorum leaf and shoot blight (Sudden oak death) 
Shoot blight (Gray mold) 
Insect
Bean aphids 
Root weevils 
Viburnum leaf beetle 

WSU Extension Presents
Hortsense
        

Fact sheets outline IPM strategies including cultural, mechanical, biological, and chemical methods.

Pesticides listed in the fact sheets are examples of products that are legal for use in Washington.