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 ...

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 ...

Elm zigzag sawflies can munch on plants beyond their preferred elm trees when foliage isn't available, a new study suggests ...

Female moths avoid laying eggs on stressed plants that emit ultrasonic sounds. Instead, they choose silent, healthy plants.

Some bugs are OK, others are not, and the same goes for trees growing in the D.C. region. What should you be on the lookout for? During a walk-through at Patuxent River State Park, Davey Tree Expert ...

Are you suddenly finding groups of ½-inch long, black-orange insects on your property? Chances are, you have a boxelder infestation. Hailing from the same family as cicadas and stink bugs, boxelder ...

It might be a good idea to dispose of this year’s Christmas tree sooner rather than later. While it’s not a regular occurrence during the holiday season, University of Wisconsin-Madison entomologist ...

Climate-induced warming is fueling the proliferation of insects keen on invading Colorado’s forests and leaving the trees they devour for dead, a new report has found. After a wet and cool 2023, ...

NEW MEXICO’S FORESTRY DIVISION IS CONCERNED AFTER LAST YEAR, THOUSANDS OF TREES DIED. OUR OWN ALYSSA MUNOZ IS LIVE WITH THIS ...

PORTLAND, Ore. (KOIN) — The state of Washington is asking residents to keep an eye out for invasive insects on trees this summer. Late summer is usually the peak for invasive wood-boring insects to ...

Volunteers are on the hunt for hitch-hiking bugs which pose a threat to the plane trees that line streets and parks in London and other cities. The Woodland Trust said a team of “Observatree” ...