Green Acres

Mowing to Manage Invasive and Noxious Weeds

Mowing is often overlooked as a weed management tool, but it can be effective if done properly. For best results, timing and frequency of mowing should be based upon the weed’s biology and growth stage. More specifically, when and how often to mow depends upon the weed’s method of reproduction —seed only or seed plus creeping roots.

Weeds that reproduce only by seed are best controlled when mown just prior to or during flowering. If done at this time, these species usually only need to be mowed once per season. Spotted knapweed is a great example: Th...

 
 
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