yellow nutsedge

Asked September 7, 2016, 11:51 AM EDT

This weed is invading all my flower beds and some grass. I've got the grass in control but the flower and shrub beds are invaded. I purchased Spectracide WEED STOP for lawns and it states it will kill nutsedge with several applications. However, what can I use in beds without killing everything else. Last fall I dug up an entire bed to plant new shrubs and thought I rototilled up all those little white bulbs attached to the plants and even hand picked them out of the soil but this didn't work. Please help! Then in the spring I cut a piece of PVC pipe to place around this noxious weed, then sprayed the weed and protected the plant. I'm not ready to give up yet. LLP

St. Mary's County Maryland

1 Response

This is not an easy weed to control. In landscape beds, it is best to remove the entire plant (including the root/rhizome system) by digging around the plant’s base. This will help ensure that you will not get regrowth from the nutsedge’s underground rhizomes. A nonselective herbicide which contains glyphosate provides only marginal control. Here is more information on nutsedge http://extension.umd.edu/hgic/yellow-nutsedge
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