WSU Extension

Hortsense

Photinia
 
Disease
Leaf spot (Diplocarpon) 
Physiological leaf spot 
Powdery mildew 
Insect
Aphids 
Root weevils 

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.