Invasive elm zigzag sawfly detected in Michigan
LANSING – The Michigan Department of Agriculture and Rural Development confirmed the state's first detection of elm zigzag sawfly (Aproceros leucopoda) in St. Clair County, in late June. The invasive insect was identified by the U.S. Department of Agriculture's Animal and Plant Health Inspection Service following a report submitted by an arborist through the Midwest Invasive Species Information Network online reporting tool. Young elm zigzag sawfly larvae create distinctive, meandering “zigzag” patterns starting at the leaf edges as they feed. “While this is the first ...