One of the largest old elm trees in Toronto — possibly in all of southern Ontario — is on its last legs. But as the city finalizes plans to take down the Barton Avenue landmark next week, a ...

However, almost all mature American elm trees have been killed in the last 50 years by Dutch elm disease, which is caused by a fungus, Ophiostoma novo-ulmi, introduced from Asia. Elm bark beetles ...

Residents in the Palmer Square neighborhood want a city ordinance to protect American elm trees dating to the 19th century that are among the handful that survived Dutch elm disease.

They cloned seedlings of the tree, drilled holes in the bark at the base of the seedlings and filled the holes with a lab-concocted culture of Dutch elm fungus. Some of the young trees died quickly.

One of the largest old elm trees in Toronto — possibly in all of southern Ontario — is on its last legs.But as the city finalizes plans to take down the Barton Avenue landmark next week, a University ...

Prior to the introduction of Dutch elm disease, the native elm bark beetle was not a major pest. The two non-native species are more aggressive with drought-stressed American elms.

Elm seed bugs are native to Europe and the Mediterranean and were first documented stateside in Idaho in 2012. In 2017, the species was discovered in Colorado in Mesa, Delta and Montrose counties.

RENO BOTTOMS - The elm tree that towered over Andy Meier was a survivor. At 37 inches around and about 150 years old, it had so far avoided Dutch elm disease, the fungus that wiped out many of its ...

The English elm bonsai tree is a small version of the English elm tree, usually growing up to 60cm in height. Its leaves are small and oval-shaped, and its branches have a graceful, sweeping shape.

Fortunately, Dutch elm disease didn’t kill every elm tree in the state. Some very hardy “survivor” elms were left behind. “Oftentimes, they’re the only elm tree left in an area where ...

The second of the Preston Twins, which were planted in Brighton's Preston Park in around 1600, succumbed to Dutch Elm Disease in 2019, with hundreds mourning its loss.