Bark beetles moving between trees routinely carry two fungi that are responsible for the Dutch elm tree disease outbreak.

Spruce bark beetles don’t just tolerate their host tree’s chemical defenses—they actively reshape them into stronger antifungal protections. These stolen defenses help shield the beetles from ...

If you've started sneezing and coughing after bringing home a Christmas tree, you're not alone. Allergists have been seeing more patients come in with allergy symptoms recently. They're calling it ...

The list of diseases attacking trees in the Pacific Northwest grows every year. A pathogen new to Pierce County brings an added concern: It can injure people. A research project using citizen ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Conifer forests across Europe are under siege from a tiny threat ...

The blackish trunks on the crapemyrtles around town are caused by an insect known as crapemyrtle bark scale. It doesn’t kill the trees, but it does make them unsightly and less vigorous. This scale is ...

Bark beetles may use receptors in their antennae to detect and feast on fungus-infected trees. The Eurasian spruce bark beetle (Ips typographus) – found in Europe, Asia and some parts of Africa – ...

Q: We have a problem with our lone Japanese Maple tree in our front flower bed. We think it has a fungus, and we're not really sure if we can do anything to save it. We noticed it a couple of months ...