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Nutgrass
Mature Nutgrass

How To Kill Nutgrass | Mullumbimby Couch

For the sake of this article, we are going to talk about two different plants under the name of Nut Grass. The first is obviously Nut Grass itself, and next is Mullumbimby Couch. They are grouped together because they are both part of the Sedge family, look almost identical, and treatments are the same.


Nutgrass

Nut Grass is an extremely tough weed, very strong in structure and very difficult to kill. It has triangular shaped thick stems, topped with three leaves, the root system is extremely tough, sending out underground runners containing bulbs, which can regenerate new plants in new areas.


Nutgrass Removal

The best way to eradicate Nutgrass is to physically dig it out of the ground or lawn, making sure to follow and remove the root system and bulbs as you go. If a re-emergence occurs then some of the roots or bulbs were left in the ground. So it's a simple case of using the same method of removal again, always trying to remove everything.

Nutgrass

Herbicides For Nutgrass

The most effective way to kill Nut Grass with a herbicide is to use a Non Selective Herbicide. The most popular herbicide in this group is Glyphosate, which is known by a few very popular brand names. While using gloves, the Nut Grass should be separated as much as possible from the rest of the lawn, and the Glyphosate applied by paintbrush or by careful spraying. Being very careful not to let the Glyphosate touch any of the lawn, or any other wanted plant.


Repetitive Nutgrass Treatments

As already mentioned, Nut Grass is a very hardy and tough weed, just as a single removal by hand may not end the problem, the same is true for herbicide use. Several treatments of the same weed a few weeks apart may be necessary to kill the offending culprit.


Prevalent
September - March


Treatment Times
When Evident


Botanical Name
Cyperus rotundus (Nut Grass)
Cyperus brevifolius (Mullumbimby Couch)


Life Cycle
Perennial


GLYPHOSATE WARNING
Always remember that Glyphosate is a Non Selective Herbicide. Meaning almost every plant can be killed by being in contact with it. Always use with extreme caution, and never spray on windy days.





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