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 ...

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 ...

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 ...

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.

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 ...

Moving into warmer weather after the cold weather we had at the end of January, we start to see a common, but alarming, sight on trees, southwest injury, also called sunscald.