Why Japanese knotweed, black swallow-wort and garlic mustard?
Japanese knotweed and black swallow-wort have proven harmful to forests and floodplains in the Eastern US but have not been widely established in Michigan. Garlic mustard is equally destructive. Garlic mustard has already spread throughout much of Michigan’s southern lower peninsula, but is just now invading the northern lower and upper peninsula. Early detection and rapid control of these species will help protect the natural heritage of Michigan State Parks. How you can help with early detection? The following choices 1. Report possible sightings in a state park by filling out the Unwanted Plants Detection Card . You can mail or email it to the addresses below. 2. You can also mark the location of detected plants on a park visitor map, or take their GPS coordinates. Mail, email or fax the park map or GPS coordinates with the detection card (from above). 3. Report sightings at www.MISIN.msu.edu You can also help prevent the spread of invasive plants by cleaning your boots, clothes and
