DNR Seeking Help in Manage Tall Manna Grass Invasive Species

The Wisconsin DNR is asking for help from property owners in Dane, Jefferson, Waukesha, Milwaukee, Racine, Kenosha, Ozaukee, Washington, Dodge, Door, Calumet, Winnebago, Wood and Oneida counties so that the department can find populations of an aquatic invasive species commonly known as tall manna grass, map the extent of its spread and plan chemical treatments. The plant has posed a threat to dairy and beef cattle because consumption of its young shoots may sicken or kill animals. It also makes water stagnant and unpalatable for animals to drink. We’d like to hear from homeowners who think they may have tall manna grass on their properties so that we can offer an herbicide treatment,” said Jason Granberg, DNR water resources management specialist. “We have funding to provide free treatment for control of this plant.” More information and pictures may be found on the DNR website by searching for “tall manna grass.” By late July, the plant will have well developed seed heads and can be readily seen in wetlands or in saturated soils. Landowners who suspect they have the plant on their properties may contact Granberg for identification assistance. Digital photographs from the property owner and location details are greatly appreciated and may be emailed to [email protected]

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