Spokane/Stevens County Extension

Forest and Wildlife Resources

Forest Insects and Diseases in Northeast Washington


 

Diagnosing Your Sick Trees

If you have trees in your forest that are dying or already dead, the following websites and material may help you identify the culprit. Initially you will need to be able to identify the species of tree that is affected, as many forest damaging insects and diseases are specific to particular host trees. You can learn to identify the trees on your property by downloading Trees of Washington or you may contact the WSU Extension office at 509-477-2199 and we'll help you diagnose the problem.

Once you know the tree species, you can move on to the following diagnostic web sites:

WSU forest health on-line diagnostic web site

OSU common insect and disease problems diagnostic web site

 

Forest Health Publications

Forest Health Noteshttp://ext.wsu.edu/forestry/foresthealth/foresthealthnotes.htm

Forest Health Streaming Video http://ext.wsu.edu/forestry/video/foresthealth.html

Other Forest Health Publications

Insect defoliators in the Inland Northwest

Major bark beetles of the Intermountain West

Major defoliating insects of the Intermountain West
Western Spruce Budworm and Douglas Fir Tussock Moth

Why are my trees dying?

Helpful Web Sites

On-line Catalog of Western Forest Insects and Diseases

Forest health streaming videos

WA-DNR forest health web site

Forest health in Idaho

US Drought Monitor

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Some WSU web sites provide links to external sites for the convenience of users. These external sites are not managed by the WSU Extension. Furthermore, WSU Extension does not review, control or take responsibility for the content of these sites, nor do these sites implicitly or explicitly represent official positions and policies of WSU.

Spokane County Extension , 222 N Havana, Spokane, WA  99202, 509-477-2048, Contact Us