Phragmites is one of the Top 20 invasive plants in northwest Michigan. The Top 20 list was developed in 2010, when ISN partners met and discussed known invasive plants in the region and chose 20 that posed the greatest threat to our fantastic habitats. Level of “importance” of these 20 plants varies within the region, though phragmites, Japanese knotweed, Oriental bittersweet, and garlic mustard have risen to the top as very invasive species that are not completely established in the landscape. The Top 20 list does not include Early Detection/Rapid Response species–non-native plants that are causing problems in other, similar areas, but are have not arrived or are not well established in northwest Michigan. Early Detection species are at even higher priority than the Top 20 so we can act quickly to control them before they become firmly established and do the damage to our habitats.
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