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.

Oak trees around Minnesota have suffered from bouts of heavy precipitation and drought — conditions that make them more vulnerable to two-lined chestnut borer, a beetle that eats the inner bark of oak ...

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 ...

Jonah Kaplan is WCCO and CBS News Minnesota's investigative reporter and has built a strong reputation for his balanced and in-depth coverage of high-impact issues including the economy, immigration, ...

While the weight of freezing rain, ice and snow can damage branches, there is another kind of injury that comes with the extreme cold, experts say.