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 ...

The technology used to scan the tree has previously been used by HES to create digital images of historic buildings Dutch Elm Disease is a fungal infection spread by tiny bark beetles. It can ...

In the wake of Dutch elm disease, the tree was largely forgotten ... which is bad news for the lichens which grow on the bark of both the ash and the elm. "These specialised fungi are running ...

Likely originating in Asia, Dutch elm disease was first observed in the U.S. in the 1930s. Since then the disease has killed billions of elms around the United States and abroad, Held said. Spread by ...

In 1977, 31,000 elm trees died in Minneapolis because of the disease, which is transmitted by bark beetles and the trees’ root systems. “Over 95 percent of the trees on all the streets in Minneapolis ...

“Elm Disease Still Plagues Trees In City,” by Mel Dixon (July 17 ... with insecticides which can kill the beetle before it bores through bark carrying the fungus which shuts off a tree's ...

Slippery elm is a supplement made from the inner bark of the slippery elm tree (Ulmus rubra), native to North America. Taking it as a supplement may offer a few health benefits, such as improving ...

All council-owned trees in the Waipā district have been vaccinated against Dutch elm disease. Photo / Waipā District Council Dutch elm disease is spread by elm bark beetles, which carry the ...

Symptoms of DED include b rown staining under the bark, curled and brown ... are working swiftly to remove a fifth tree found ...

Dutch elm disease has claimed the life of a 100-year-old elm tree in the Waikato, despite the tree being vaccinated. The fatal and fast-spreading disease is caused by a species of fungus and ...