Washtenaw County Conservation District – Manage Japanese Knotweed with the Herbicide Injector

Japanese knotweed is an invasive species that grows very aggressively in disturbed areas. It is detrimental to natural areas by excluding native plants and can cause damage to human structures. The WCCD Tool Lending Library offers a herbicide injector for direct stem injection of herbicide to kill these difficult-to-manage knotweed species. The fall season can be a good time to treat these before the stems get too hard to penetrate.