BACK in elementary school, I learned that California’s native coastal tribes desensitized themselves to poison oak by ...

Jessica Jones, an arborist with San Antonio Tree Surgeons, said the best way to identify oak wilt is by examining the leaves of a live oak. Jones said the leaves are the last symptom and sometimes ...

Their eggs grow into the tree, leaving a hard capsule around it, which the larvae inside will eventually eat. Their eggs can be seen around the leaves and branches of oak trees or on the ground ...

With the help of a new grant, a team of researchers at the University of Minnesota researchers are studying oak wilt, an invasive fungus that is threatening Minnesota’s oak tree population. Sometimes ...