The American elm trees, each about 2 years old and 4 to 6 feet tall, were cloned by University of Minnesota researchers to be resistant to Dutch elm disease, a fungal disease that killed millions ...

As its name implies, the invasive insect feeds on elm tree leaves, creating a distinctive zigzag pattern on the leaves while feeding.

As the Minnesota State Fair grounds begin to bustle with activity, fair officials and University tree pathologists are trying to determine why half of the elm trees on the grounds are infected with ...

A new invasive insect has been discovered in Minnesota. Officials announced an elm zigzag sawfly was found on the University of Minnesota Twin Cities campus.

Researchers and volunteers plant elm trees in a field at Boutwells Landing senior living community in Oak Park Heights on Friday, May 16, 2025. The University of Minnesota researchers hope the ...

Ash trees are dying by the thousands in south-central Minnesota. Chainsaws are roaring as government workers struggle to keep up. And tree experts warn that 2025 will be much worse.

Run by teenagers, for teenagers, the Green Crew helps students get their hands dirty with projects like tree planting, trail restoration and invasive species removal.

MINNEAPOLIS — Minnesota agriculture officials announced Tuesday the discovery of an invasive insect new to the state. According to the Minnesota Department of Agriculture, the elm zigzag sawfly ...

The American elm trees, each about 2 years old and 4 to 6 feet tall, were cloned by University of Minnesota researchers to be resistant to Dutch elm disease, a fungal disease that killed millions ...

An invasive insect, the elm zigzag sawfly, was found in Minnesota for the first time, according to a news release from the state's Department of Agriculture.