DNR warns of invasive tree found in 12 Wisconsin counties

DNR warns of invasive tree found in 12 Wisconsin counties
Wisconsin DNR

Officials with the Wisconsin Department of Natural Resources are asking people to be on the lookout for an invasive species of tree.

According to the DNR, the Amur cork tree has been found in at least 12 counties, with populations ranging from a few to several thousand. The trees have a unique, corky outer bark and have a yellow tissue under the bark.

DNR seeks public help to identify and map invasive cork trees: https://t.co/oAnKjoqjMc

— Wisconsin DNR (@WDNR) February 26, 2019

The species of tree is damaging to the diversity of Wisconsin’s forests, and planting them is prohibited under the state’s invasive species rule.

The trees are typically found in parks, yards and cities, but they can quickly spread to forests after their fruit is eaten by birds.

Officials said people who believe they have spotted one of the trees should use a knife to peel away the bark to confirm the color.

The DNR asks people to email them locations of the trees at invasive.species@wisconsin.gov with the subject line “Amur cork tree location.”

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