A deadly new oak-tree disease can be prevented by pruning them in the dormant season (if needed) instead of spring or summer.

Oak wilt is a fungal disease that can weaken white oaks and kill red oak trees ... Red oaks are most susceptible. Red oaks ...

Additionally, infected oaks can spread the disease to other trees through underground root connections or grafts, creating an ...

Oak wilt disease occurs when a fungal pathogen infects a tree, making it unable to produce water from the roots to the leaves. When fungus infects an oak tree, the infection itself is kept initially ...

Sometimes characterized by browning or golden leaves at the top of the tree and a dark bluish-gray discoloration in the bark, oak wilt kills thousands of trees each year, and the disease is present in ...

Japanese oak wilt (also called mortality of oak trees in ... [1] It is the first disease known that Raffaela fungus cause plant disease. The first obvious symptom was that the leaves wilted, and many ...

Ample moisture is needed to fully form new leaves and stems ... spring or summer when sap-feeding beetles actively spread oak wilt disease. Wait to prune oaks in late winter.

Other trees to eliminate are those subject to serious insect and disease problems that kill or disfigure their hosts. In the ...

They have bulging cankers, “flagging” branches sporting yellow and brown leaves ... there’s Dutch elm disease, the emerald ash borer, butternut canker, oak wilt, and white pine blister ...