Ortho Nutsedge Killer for Lawns Ready-To-Spray, Controls Over 50 Listed Weeds, For Use on Northern and Southern Turf Grasses, 32 fl. oz.

I did not want to spray this product across my entire lawn since the sledge grass was only in two areas. I calculated that there is .448 ounces of the active ingredient sulfentrazone in this 32 ounce container. There is .012 ounces of the active ingredient in the 24 ounce Ortho spot sprayer container. If you do the math, .85 ounces of the contents of the 32 ounce container is needed to produce 24 ounces of the spot sprayer. Consequently, you can produce 37 24 ounce portions to spot spray! Do not over spray the resulting product. You might have some yellowing of your grass (Zeon in my case) but it will be gone in a few days. It will kill much of the sedge. However, I would respray every 2 weeks. You can use a garden sprayer or even the 24 ounce spot spray bottle if you have one.

This is the best product for killing yellow nutsedge! I try not to use chemicals in my garden, but I don’t really believe you can get rid of nutsedge any other way. It just grows so quickly, and the more you pull it out, the more it spreads. Every summer, I try to beat it on my own and every summer I lose. Then I buy this product and nutsedge is gone for the rest of the season with only a few spots needing another treatment afterwards.Be careful not to overspray though. Soaking your grass with this product WILL damage or kill it. I learned this the hard way. Just spray and go, and do another quick pass if you used less than 6 Oz per 1000 sf.Absolutely a life saver!

This stuff is the truth. I had 8 week old St. Augustine sod being invaded by nut grass. This stuff did kill all the nutsedge in the lawn. My sod did get some brown damage as well but it came back after 2 weeks of growth. I’d say be careful with applying to sod that isn’t very well established. I may have jumped the gun on this but the nut grass was out of control.

This stuff is amazing but be cautious it's VERY strong. First time I used it went too much and it put a hurting on normal grass but it came back in a couple weeks. Literally can just do a single pass quickly especially after you just mow and it will totally do the job in a day.

Definitely did something I spray it on Saturday and the next day the little buds on the nutedge disappeared and the base of it is lightly brown. Definitely is killing the weed. did not discolor or damage my grass at all. ws very east to apply hoping once I cut my grass in a few days it doesn't come back. so far ots okay on centipede grass

Fortunately, I only sprayed a small portion of my tall fescue lawn. A couple of days later, my green lawn was browning where I sprayed the product. Not trusting that the setting of water/ product mixture was accurate for my ready to spray bottle, I called Ortho to get a product to water ratio so I could just add it to my garden sprayer and spray myself. Amazingly, I was told the product was "already diluted" which makes no sense since it has to be used on the end of a garden hose. Not impressed with the company's helpdesk and not sure I trust the product enough to keep using. Will most likely return and go with a product that I can control with my own sprayer. If you use, test on a small area of your lawn first.

It worked just like it said, but it didn't stop it from growing back in full force. I still have a brown lawn from the dead parts but the new growth is quickly taking over.

This stuff is AMAZING. I didn't want to mix weed killer in to my sprayer because I use a weed killer in it that would kill my grass. This premix hose attachment was perfect. I thought it would work but take a week or two to show signs of weighing. But within a day I started to see wilting. 4 days later all nutgrass is dead. My Bermuda grass is now the only thing living in my yard! I've attached two images with circles that show before and after.