Spruce bark beetles hijack their host tree’s chemical defenses, transforming them into potent weapons against fungal threats.

Don't stress if you have a tree that's not looking its best in the bark department. You can save a tree with damaged bark by first assessing the type of damage. Once you know the severity, you have a ...

Mar. 29—Every year, John Formby spends weeks flying in a plane above New Mexico's forests, looking for trees with signs of insect damage and stress from heat and drought. The state forest health ...

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 ...

PORTLAND, Ore. — On Friday, the Oregon Department of Forestry launched its annual aerial survey of forests throughout the state, something the agency has done since 1947. Over the next few months, ...

It’s easy to understand why some refer to winter as “stick season.” Snow cover, gray skies, and cold temperatures could lead to agreement that there is nothing but sticks to look at in the garden. But ...

The Penn State Extension of Berks County Master Gardeners will be featuring questions and answers to inquiries received through their Garden Hotline. Q: I’m concerned about using insecticides to treat ...