WSU Extension

Hortsense

Mountain Ash
 
Disease
Fire blight 
Nectria canker 
Insect
Aphids 
Ash borer 
Leaf blister mite 
Mountain ash sawfly 

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.