First invasive elm zigzag sawfly detected in Michigan in St. Clair County

First invasive elm zigzag sawfly detected in Michigan in St. Clair County
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The invasive elm zigzag sawfly has been detected in St. Clair County, the first detection in Michigan, according to the Michigan Department of Agriculture and Rural Development (MDARD).According to the state, the invasive insect was identified by the U.S. Department of Agriculture's Animal and Pl...