As the world warms, trees in such forests will no longer be adapted to their local climates. That’s where assisted migration comes in John H. Tibbetts, Knowable Magazine On a brisk September morning, ...

MINNEAPOLIS — Minnesota's warm winter has hurt the fight to control invasive species that attack trees and plants. Common invasive insects we see each year cannot survive typical Minnesota winters.

With wispy tufts that drape trees like haunted-house cobwebs, old man’s beard lichen can be an unexpected sight in northern Minnesota forests. It resembles a petite version of Spanish moss seen on ...

Hiking through Minnesota’s majestic forests is a tradition enjoyed by generations. Studies show that time in nature boosts mental health and well-being. As you walk beneath the canopy, you might ...

Scientists at the University of Minnesota published a study in the journal Forests in November 2025 about the potential for fungi to slow the spread of emerald ash borer, a beetle that kills ash trees ...

As the Twin Cities fight against the infestation of an invasive beetle by removing Ash trees, new varieties of trees are being planted in their place. Since planting began on April 8, Minneapolis has ...

Pheromones from tiny beetles could help save Minnesota’s tamarack trees University of Minnesota scientists have identified the chemicals tree-killing beetles use to communicate. Those could be ...

The eastern spruce budworm is a native insect that munches on balsam fir, leaving some 1,100 square miles of trees defoliated or dead last year, the most in the region since 1961. A spruce budworm and ...