Oak wilt weakens white oak trees and kills red oaks within weeks of infection. Bacterial leaf scorch is a chronic disease that worsens over several years. Both diseases spread to nearby oaks.

If you have a majestic and stately oak tree (Quercus spp.) growing in your yard, you'll know that the leaves ... white, and black oaks. There appears to be multiple causes of this disease ...

Generally, symptoms consist of leaf discoloration ... Symptoms on white oak trees can be confused with other insect or disease problems. Oak wilt can be spread in two modes: over land by sap ...

The diseases are particularly severe on American sycamore, the white oak group ... It is most noticeable on the leaf, stem, and twig of an oak tree. Although these galls may look like a serious ...

Waiting until the leaves ... the tree’s water-moving system and leads to leaf wilting and tree death – somewhat akin to clogging of the arteries in a person. Oak wilt also can target white ...

Several possible causes for this symptom have been proposed, including poor growing conditions, insect injury, leaf diseases, late spring frost ... We once had samples from a white oak tree that ...

During the period between April 15 and July 15, beetles actively carry spores of fungus from tree to tree, meaning oak trees are at high risk for infection with oak wilt. Oak trees with wounds in ...

There are three key ways to tell the difference between living red oaks vs white oaks. The leaves of red oak trees have pointed lobes with a bristle at the end, giving them a more jagged look. White ...

Oaks are the most abundant trees in yards and forests across Missouri. Two common oak diseases are bacterial leaf scorch and oak wilt. Oak wilt weakens white oak trees and kills red oaks within ...