Bark beetles moving between trees routinely carry two fungi that are responsible for the Dutch elm tree disease outbreak.

Bismarck's Forestry Division is preparing to launch a citywide search of firewood piles, which can provide overwintering habitat for the elm bark beetle. The city's Dutch elm disease prevention ...

Getting your Trinity Audio player ready... Dutch elm disease has been reported back in Denver after more than a decade of its absence. The Denver forestry office discovered the disease last month in ...

American elms, Ulmus americana, are native to North America from Saskatchewan to Nova Scotia and from Texas to Florida. They grow 60 to 80 feet tall, with a thick trunk, the shape of a vase and a ...

Bismarck's Forestry Division is gearing up to search firewood piles for the elm bark beetle as part of the effort to protect trees in the city from Dutch elm disease. Firewood can provide ...

The elm trees on my street downtown have been infested the past couple of years with what I think are elm leaf beetles. We can see little striped worms climbing up the bark, and the leaves are chewed ...

Phoretic mites are small arachnids that exploit the mobility of bark beetles to disperse between habitats. These mites attach themselves to their hosts during specific developmental stages and are ...

Barren, dead American elm trees along Ogden River are seen from a residence about three miles up Ogden Canyon on Wednesday, Oct. 9, 2019. The line of trees used to have full canopies, providing ...