Streetlights left on all night cause leaves to become so tough that insects cannot eat them, threatening the food chain, a study has found. “We noticed that, compared with natural ecosystems, tree ...

Safeguarding your trees against pests is important to their health and longevity. Invasive species can wreak havoc by defoliating or infecting trees, and left untreated, can lead to loss of limbs and ...

Trees are often promoted as an important tool for combating climate change. That’s because trees take in carbon dioxide from the air and lock it away in wood and soil for years. But trees may not be ...

Balsam woolly adelgid threatens native fir trees and the state’s Christmas tree industry as it spreads to a fifth Michigan ...

Bizarre-looking bugs known as scale insects may be tiny but they can take down an oak tree. Considered pests, the creatures tend to flock to cities where they weaken, and in some cases kill, trees by ...

Invasive insects in the U.S. could kill up to 1.4 million street trees by 2050, according to researchers. In an international study published in the Journal of Applied Ecology, a team found that the ...

Angela Mech, assistant professor of Entomology at University of Maine, has been leading the research for the i-Tree pest predictor. Mech specializes in invasive forest insects. University of Maine ...

Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in Menlo Park discuss a tree-related topic from general care and planting tips to how ...

The DNR says the insect so far has only been detected on DNR property in the area. Residents will be contacted if the survey area expands.

Bizarre-looking bugs known as scale insects may be tiny but they can take down an oak tree. Considered pests, the creatures tend to flock to cities where they weaken, and in some cases kill, trees by ...