![]() If pulling or digging, remember that soil disturbance can encourage growth from seed bank.Mechanical treatment can sometimes cause greater disturbance than if the site was left alone or if another treatment option was utilized.US Forest Service Fire Effects Information System Report on Purple Loosestrife.Invasive Species Council of Metro Vancouver Factsheet on Purple Loosestrife.PennState Extension Resource on Purple Loosestrife.Ontario Invasive Plant Council Best Management Practices for Purple Loosestrife.Here are additional guidance documents on best management practices for purple loosestrife.Management options listed below are representative of research by institutions like The Nature Conservancy, Invasive Plant Councils, PennState Extension, and the US Forest Service. ![]() The intent of mechanical or chemical treatment is to kill target plants.Our work is in figuring out how to minimize disturbance and maximize positive benefits. All action promotes disturbance - mechanical, chemical, and even just doing nothing. ![]() Which methods you choose also depend on the purpose of control: eradication (removal of all plants, plant parts, and seed bank), or containment (reducing seed production, reducing spread, reducing growth, removing individual plants near site of concern).Most methodologies alone will not suffice and should be part of an integrated pest management plan.Preventing spread, containing existing infestations, and removing plants from new sites are the best strategies. ![]()
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