Oak-killing disease could be on its way to Minnesota, officials warn
The disease causes sudden oak death, and is feared to be making its way to the Midwest.
invasive species
Invasive beetle found in Minnesota for the first time
The beetle weakens and eventually kills viburnum plants.
Invasive goldfish population spikes in Chaska chain of lakes
Goldfish aren't good for Minnesota's waterways.
Invasive tree pest has now been found in festive wreaths in Minnesota
People are urged to burn or trash the wreaths and boughs after the holidays are over.
Alert in Wisconsin after invasive pests found in Christmas wreaths
Buyers have been advised to burn wreaths and boughs at risk from the pests.
Two invasive species have infested one of the state's biggest rivers
Two different invasive species are in it
Here's why the DNR put an invasive carp back in the St. Croix
It's part of the fight to keep the fish out of the state