Seeing unusual growths on your trees? Learn what oak tree galls look like, what causes them and how to manage them with ...

That means prevention is key. “If you need to have an oak pruned to remove damaged branches or improve its structure, have it ...

PORTLAND, Ore. (KOIN) – An invasive insect has caused noticeable damage to Oregon’s white oak trees in 2022, the Oregon Department of Forestry said. The oak lace bug, scientific name Corythucha ...

Scientists have discovered that trees affected by Acute Oak Decline (AOD) emit distinct odours that are highly attractive to ...

Plenty of animals build their homes in oak trees. But some very teeny, tricky insects make the tree do all the work. “What nerve!” you might say. What … gall! And you’d be right. Oak galls are caused ...

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 ...

Oak trees around Minnesota have suffered from bouts of heavy precipitation and drought — conditions that make them more vulnerable to two-lined chestnut borer, a beetle that eats the inner bark of oak ...

AOD is a fast-progressing condition affecting thousands of mature oaks across England and Wales. It is characterized by dark, ...

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 ...