Ortho Max Nutsedge Killer Rtu, 24 fl.oz. (2 Pack)

This product absolutely works to kill and prevent Nutsedge. Caution to not over saturate with this product. I over saturated several areas to empty the bottle and I burned the grass badly. After 3-4 soaking rains and ensuing sunshine, the burn spots have gone away and the grass has recovered. Again, do not over saturate!!!!!

This is the only thing I have found to eradicate nutgrass. If you use according to instructions and get on them when they first break the surface of the soil it takes them out in a day or two. It becomes less effective the longer you wait and the taller the weed gets.

I sprayed this on nutsedge that was taking over part of my backyard. After about 2 days the nutsedge had turned brown and after about 4 days it was dead. It’s been about a week now and the nutsedge hasn’t returned but I saved half of the bottle of this product just in case I need to do a second treatment. This weed killer also took care of some different weeds in the vicinity. I like that this sprays easily with a hose attached but I’m deducting one star because sometimes it’s not clear from the nozzle switch if it’s in “water” mode or if it’s actually spraying the chemicals onto the lawn. I accidentally bumped the switch and didn’t realize until a few minutes later and the water may have diluted the weedkiller I had just sprayed down. But overall this is a great product and more effective than other weed treatments I’ve used on my lawn.

AMAZING stuff. I bought a bottle of this stuff in the summer of 2024 and used it for the first time in July 2026. 72 hours after spraying, all of the nutsedge that I sprayed is brown and dead / dying. I'm no longer a sceptic.

Works great without killing any other plants

product works, sprayers invariably leak and Amazon loses the nose of the sprayer....washers, no washers, it will leak somewhere

Worked great on the weeds in my backyard. Didn’t have any issues with leakage or getting it on me so I felt safe using the product. Price was right for having to pull a yard full of weeds. Since it was so easy to use, I’ll be applying again as needed.

It doesn’t work right away and your lawn doesn’t look pretty while it works. I just ordered another bottle, from what I’ve read from other reviews it takes at least another application, after 4 or 5 days to kill the roots!

This did the job, nut sedge and other weeds yellowing fast. Make sure you push the lever fully forward or you may just be spraying water. Also be aware that the hose connection is not typical for English hoses, I had to insert a male hose connector into the female thread cap on the bottle. I was concerned that the liquid would go down quickly but it turned out it dispenses steadily. There’s a viewing window on the bottle to check remaining quantity. Quick delivery and did the job