Missoula County Weed District & Extension

Mowing

Mowing can reduce seed production of noxious weeds; however, it is not generally effective at controlling weeds when it is the only control tool used. For example, mowing spotted knapweed multiple times a year produces prostrate low flowering plants. In addition, mowing weeds like leafy spurge; stimulate root growth because of their competitive root system. For mowing to be most effective, it is best to raise the mower blade above the desirable vegetation and mow the noxious weeds right below the bud of the plant before it has set seed that year. Remember to integrate mowing with other integrated weed management tools.

Kath.and.spurge

Mowing Publications:

Mowing to Manage Noxious Weeds