Autumn colours at Whipsnade Tree Cathedral, Bedfordshire (National Trust/Justin Minns/PA) Ash dieback, which was first seen in the UK in 2012, causes leaf loss and crown dieback and can lead to ...

"If you look at the top of an ash tree and see a branch with no leaves, like bony fingers sticking out of them, that's ash dieback," Mr Reynolds said. "Five years ago, everywhere I went ...

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Signs of the invasive emerald ash borer are visible on a large branch of a tree in front of a residence in Carbondale on June 12, 2023. (Photo by Kelsey Brunner/Special to The Denver Post ...

Dr. Max Ragozzino with the Oregon Department of Agriculture held up an ash tree branch, pointing to the holes on one side. “In a sample like this, each of these little de-shaped exit holes is ...

A concern is the tree becomes more hazardous as it gets more infested. “Ash trees get so brittle when they die that they can literally explode. A six-inch branch can just shatter from even a ...

Active from May through July, the half-inch adult beetle feeds on ash trees and lays eggs on the bark. When hatched, the larvae then tunnel into the tree’s sapwood layers, producing S-shaped ...

Most of the city’s trees are ash trees, and they are also mature, meaning that a falling branch from a dead tree poses a large hazard. Matthew Rusch is the director of public works and utilities for ...