Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study shows. Bark beetle-infested spruce trees begin to dry out already before ...

In between beach days and backyard barbecues, the end of summer is a good time to examine your trees for signs of hazardous invasive insects. The USDA has named August as Tree Check Month to encourage ...

I’ve seen a fungus-like growth on several trees in the neighborhood. It’s a pale gray-green color with a frilly texture, and it coats much of the bark on some trunks. Can we do something about this ...

Occasionally, homeowners will notice small holes in the trunks of landscape trees. This may not mean impending death to the tree, but it’s not good. The presence of holes usually means that an insect ...

The city says it will cut down around 250 trees from parks, including 50 in Manito Park, due to significant damage done by bark beetles.

State experts offer tips on how to identify insects that pose a threat to the region's trees and what to do if they are found ...

Pests are killing vast numbers of trees in Washington and forest managers are working on a plan to fight back. State Lands Commissioner Peter Goldmark said two ravenous insects are doing a lot of the ...