Oak wilt is particularly destructive, as it can spread to neighboring trees by root grafting or by sap feeding beetles and/or oak bark beetles. Northern red oak is frequently planted as an ornamental ...

Oak wilt is a fungal disease that is spread by sap-feeding beetles through open wounds in ... and sometimes fungal mats under the bark. A definite diagnosis is best done in a lab.

Fewer than 2% of North America’s bark beetle species attack trees, but those that do have killed billions of conifers across ...