WSU Extension

Hortsense

Arborvitae
 
Disease
Berckmann's blight 
Cedar flagging 
Leaf blight 
Shoot tip dieback 
Twig blight 
Insect
Cypress tip moth 
Flat-headed and shothole borers 
Juniper scale 
Juniper webworm 
Leafminers 
Spider mites 
Spruce bud scale 

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.