Beech leaf disease, which was confirmed earlier this month in Vernon and more recently in Dummerston, is caused by invasive nematodes that spread in the tree’s leaves. In the United States ...

The disease causes deformities that cause the wood to be unusable, and severely damaged trees are often culled. Even if the ...

Ash dieback is a fungal disease that can lead to leaf loss and dead branches An estimated 5,000 ash trees could be lost in Worcester over the next 10 years due to fungal disease ash dieback.

A withering disease has killed more than 500 broad-leaved trees and infected hundreds of others at parks throughout Tokyo this fiscal year, according to the Tokyo Metropolitan Park Association.

According to the Aomori prefectural government, only 85 trees were confirmed affected by the disease in the town of Fukaura in the prefecture between July 2016 and June 2017.