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Sun, May 29, 11 at 14:56
| I've been fighting nutsedge for nearly 10 years now. I started with pulling, and when that didn't work, I started spraying Sedgehammer (formerly Manage). The nutsedge would die from the Sedgehammer, but come back. I've even tried spraying twice - once in June, and again in August. It still comes back the following year, just as strong as ever.
Obviously, Sedgehammer kills the top growth, but not the root, or it wouldn't keep coming back. Is there anything that will actually kill nutsedge permanently, down to the root? Deanna |
Follow-Up Postings:
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- Posted by schreibdave 5 (My Page) on Sun, May 29, 11 at 21:20
| I havent tried it personally, but Tenacity is labeled for yellow nutsedge. It also seems to be effective against many weeds that it's not even labeled for. It's about $50 at Lesco. |
Here is a link that might be useful: Tenacity
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| In addition to Tenacity, you could also try this product which is available at Home Depot and is a bit cheaper: http://www.scotts.com/smg/catalog/productTemplate.jsp?proId=prod105500
11&itemId=cat50064&tabs=general There is also a herbicide called Sedgehammer that is supposed to work well, but I think you would have to buy it online or at a place like Lesco: http://www.gowanco.com/ProductInfo~pid~76~SedgeHammer .aspx |
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- Posted by botanicalbill 9b SWFlorida (My Page) on Mon, May 30, 11 at 1:10
| sedgehammer and image both kill nutsedge. It works by binding at growth sites and stop it from growing. This is in the grass part and the root. So it kills the plant, root and all. What is probably happening is you are not using per-emergent and a few of the millions of seeds in your lawn keep sprouting, and growing. Thats my guess. |
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- Posted by garycinchicago Z5 Chicago IL. (My Page) on Mon, May 30, 11 at 2:01
| >"I started spraying Sedgehammer (formerly Manage). The nutsedge would die from the Sedgehammer, but come back. I've even tried spraying twice - once in June, and again in August. It still comes back the following year, just as strong as ever." Did you read the label? Did you read the instructions carefully? Let's then assume that you did and used the recommended surfactant and also didn't allow the mixed product to sit more than 12 hours, when you applied again in August. Then it should have worked fine, killing the bulbets and all. But that is only *IF* you had correctly ID'd the weed as 100% proof positive nutsedge and not just assumed/guessed it was nutsedge. |
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| What is your frequency of watering? How much and how often? |
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- Posted by gardenfanatic MO zone5b (My Page) on Mon, May 30, 11 at 10:08
| I never water. In late summer, drought conditions will cause the grass to be brown and dead, but the nutsedge is still happily growing. It's an aggravation. And once again, the nutsedge is now starting to grow. And yes garyinchicago, it is nutsedge. Yes, I used surfactant and sprayed as soon as I mixed it. Deanna |
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| Then Gary is right.....it ain't nutsedge, Sedgehammer isn't being applied at the recommended rate or whatever surfactant your using isn't getting the job done. When used correctly, the success rate for Sedgehammer is high. |
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- Posted by nearandwest 7 (My Page) on Mon, May 30, 11 at 13:02
| Is it possible that the weed you are trying to control is actually Green Kyllinga? |
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- Posted by botanicalbill 9b SWFlorida (My Page) on Mon, May 30, 11 at 16:13
| I use sedgehammer that is 7 years old. still kills the the stuff with one scoop per gallon of water. I let the sedge grow high. I mist it with sedgehammer. I make sure I mist it till I see a drop or two roll down the leaf to the crown of the plant. A day later it stops growing. About a week later it starts to yellow. I then mow and wait a few days to see what is growing, incase I missed a few. |
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| Near....You're probably right. |
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- Posted by dchall_san_antonio 8 San Antonio (My Page) on Mon, May 30, 11 at 23:02
| Green kyllinga is growing against my neighbor's house next to my driveway. It has never been watered, ever, and survives our roughest droughts. Quite an amazing plant. Where nutgrass does not survive, this stuff has a modest foothold. At first glance it looks much like nutgrass on steroids. Then you see the flower and realize it is a different plant. |
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- Posted by botanicalbill 9b SWFlorida (My Page) on Tue, May 31, 11 at 15:57
| It has the white puffy heads, right? Sedgehammer wipes it out. I had a 5 foot by about 7 foot section of this stuff. One spray with sedgehammer and two weeks, it was gone. Its a type of sedge, one of hundreds of types. |
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| I agree with the above posters. I used Prosedge (about $90 for 1.33 OZ) which is the same thing as Sedgehammer. I was shocked at how well it worked. It killed the Nutsedge within a week. It stopped growing a few days after spraying it. I used 2 gallons to get all the areas of my lawn that had Nutsedge. What I bought can make 40 gallons. So I'm good for a while. As others have noted you might have seeds in your turf or perhaps you missed some of it when spraying? This stuff drove me crazy. I would mow my lawn and 24 hours later the Nutsedge was already a few inches higher than the grass. I expected a bigger fight but this Prosedge knocks it out. It also did not do any harm to my grass and I sprayed when it was in the mid 90s (< 92 is recommended.) |
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