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 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 ...

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 ...

Bismarck City Forester Jackson Bird announced this week he will begin a citywide search of the over-wintering and breeding habitat of the elm bark beetle in firewood piles. Firewood piles may insulate ...

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 ...

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 ...