Invasive plant species are particularly problematic in Illinois because they can easily outcompete native plants for resources such as light, water, and nutrients. This often results in the decline of native plant populations, which in turn affects the wildlife that depends on these plants for food and shelter.

Removal and control involves methods like manual/mechanical (mowing, hedge grinding), chemical (herbicides), and using strategies such as early detection, integrated management, and practices to prevent spread and restore native habitats.