What is Nutgrass or Nutsedge?

Nutgrass is a common problem in summer lawns. Yellow Nutsedge (A.K.A. nutgrass) is a perennial, grass-like weed that tends to be prolific in poorly drained or wet areas. This weed is not a grass, it’s a sedge, and it’s very difficult to get rid of.  Nutsedge has triangular stems with leaves that branch out in three different directions and is a light green to yellow color.  Nutsedge grows quickly in spring and summer, outgrowing grass in just a couple of days after mowing. 

Example of Nutsedge Plant

Can I Pull Out Nutgrass?

Avoid pulling the nutgrass plant by hand. Pulling nutgrass will stress the plant and stimulate even more nutlets to sprout. Nutgrass plants regenerate from small nutlets formed on their root system under the soil surface.  These nutlets go unharmed by traditional contact weed controls, making nutsedge challenging to control. 

What is the Best Way to Kill Nutsedge?

The best nutsedge killer is a liquid spray application using Nutbuster combined with Stikit, a non-ionic surfactant, is the most effective control for nutgrass in home lawns and landscapes.  This selective herbicide will kill the nutgrass but will not hurt your lawn when applied under the conditions described on the label. Cool season grasses such as fescue, rye, bluegrass and warm season zoysia grass are tolerant to this product. 

How to Mix Nutbuster

In a one gallon pump sprayer, dissolve one water soluble bag of Nutbuster into one gallon of water. Add two teaspoons of Uncle’s Stikit, a non-ionic surfactant, to this mix and then mix the pump sprayer contents vigorously. One gallon of mixed product will cover approximately 1,000 square feet. A second treatment may be required 6 to 10 weeks later.

ALWAYS READ THE ENTIRE LABEL BEFORE USING THIS PRODUCT

Uncle’s Tips When Using Nutbuster

For optimum results, do not mow turf 2 days before or after application. Give the plant plenty of time to absorb herbicide deep into the root system and nutlets.

Spray the nutgrass thoroughly and wet the entire leaf surface.

Timing is everything, and early control is best. Nutgrass plants allowed to mature will stress when treated, stimulating more nutlets to sprout. However; be persistent and continue to spray the new plants as they emerge and you will be victorious.

What is Stikit?

Uncle’s Stikit is a non-ionic spreader sticker. Stikit helps hold the herbicide on to the waxy leaf of the nutgrass.  When Stikit is added, water can spread covering more leaf surface resulting in a better uptake of the herbicide. Avoid using soaps and shampoos as a surfactant. They contain fragrance and dyes that can leave a precipitate residue on foliage.

 

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