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 ...

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 ...

The fungus invades the bark of chestnut trees ... Dutch Elm Disease (DED) is a fungal disease that has wreaked havoc on elm trees worldwide. It is caused by two closely related species of fungi ...

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 ...

Budget25: The hiring of two more employees in the forestry division will help city hall improve response times for service ...

An ancient lone wych elm whose remote Highland location has protected it from Dutch elm disease has been joined by dozens of seedlings for the first time in hundreds of years. The elm - dubbed the ...

Winter is the best time to prune trees to keep them healthy and protect them from disease, according to the Minnesota Department of Natural Resources. “Pruning trees when they are dormant is a way ...