Garlic Mustard is on Michigan's Invasive Species watch list. It is a weed-like plant that's easily identified by the garlic-like smell that's produced when its leaves are crushed. Its leaves are triangular in shape and have sharp, jagged edges. Small, white flowers appear early in the summer.
Garlic Mustard chokes out native under-story plants including tree seedlings. It releases toxins into the soil to prevent other plants from germinating in the area.
The best way to remove and prevent Garlic Mustard from spreading is with controlled herbicides OR by pulling out the entire plant and its roots, black bagging them (be sure to tie the bag up tight!) and throwing them away.