Based on the photo we have sent, what is wrong with our oak tree? Is there something that we should be doing to ensure its health? — Mitchell and Anna Jones, Libertyville From your photo, I c… ...

Twenty-three mature red oak trees in Boulder’s Central Park and the Municipal Complex downtown will be treated for infestations of Kermes scale insects on Friday.Central Park and the Municipal ...

Researchers are using cutting-edge spatial technologies to study the aftermath of an insect infestation that has devastated red oak populations in Arkansas and Missouri, USA. The red oak borer, a ...

Invasive insects include the bright-green emerald ash borer and the huge (1-1.5 inches long) Asian longhorned beetle. Don't prune oak trees from April 1 to July 15 to stem the spread of fatal oak ...

Agriculture officials in Marin County are alerting property owners and arborists to be on the lookout for a tiny invasive beetle that attacks oak trees, after the insect was detected last month in ...

Native to Europe, the Middle East, and North Africa, the beetle was identified in a valley oak in Novato on May 23, 2025. The insect was first detected in Napa County in 2019 and has since been ...

Processionary caterpillars, whose hairs can cause rashes and breathing problems, have spread across Germany, residing in oak trees. Some have suggested the infestation is linked to climate change.