Knowledgebase

Weed Help - Quackgrass, Crabgrass, Nutsedge? #749278

Asked May 11, 2021, 11:13 AM EDT

Hi I live in Hugo MN and am seeing a lot of this tall looking grass and suspect quackgrass/crabgrass/nutsedge/or fescue....or something. Any help would be very much appreciated as I am just not good with this stuff they all look the same - ha!

Washington County Minnesota

Expert Response

The sheath, auricle (blade attachment) and long white rhizomes (roots) indicate this is quackgrass.

To identify see: https://extension.umn.edu/weed-identification/perennial-weeds

To treat see:  https://apps.extension.umn.edu/garden/diagnose/weed/idlist.html#Quackgrass

Mary, Master Gardener, Tree Care Advisor Replied May 11, 2021, 1:06 PM EDT

Youre the best! So no herbicide for this guy - it has to be treated with non-selective vegetation killer and then the patch in the lawn reseeded?

The Question Asker Replied May 11, 2021, 1:38 PM EDT

Yes, this is a tough one to get rid of.  It may take more than one treatment so don’t be in a hurry to reseed until you are sure it’s gone.  Good luck!

Mary, Master Gardener, Tree Care Advisor Replied May 11, 2021, 8:27 PM EDT

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