Reed canary grass and Japanese millet will compete with loosestrife. Disturbances associated with the use of heavy machinery and other stresses promote infestation by creating a favorable environment and weakening native vegetation. Winter burns do not control plant roots, seeds or seedling plants. Mowing does not prevent seed production and can promote adventitious growth. Herbicides are costly and in some cases, can improve the site for loosestrife by removing competitive vegetation.
Some herbicides can be useful to spot treat smaller areas of infestation.
Five insects from Europe could potentially provide long-term control without harming native flora or fauna.