Clethodim Won't Kill It; Must not be Grass?

[Victor Van Meter]

I have this in my clover plot. I have not dealth with this on this scale until this year. Cleth doesn't seem to touch it as it has been sprayed twice and no luck. Kills the other grasses, but this keeps on growing. Just curious what it is and what to spray to kill it? Thanks.

 

[KY wild]

Looks like yellow nutsedge. Look up chemicals to kill sedges

 

[T-Max]

I know for a fact that Liberty will smoke it.

 

[gurgalunas]

Imazamox has sedges on its label, and is safe with beans, clover, legumes. I'd have to re-read to refresh my memory on timing for spraying/stage of growth.

Halosulfuron is the ingredient in Sedgehammer (and other brands), a turf and landscape selective herbicide for yellow and purple nutsedge. Not sure if its safe on plot species.

 

[RGrizzzz]

You can also use Basagran

8-16 oz per acre in clover with Imox (per Raptor label)
Follow up 10-14 days later
Avoid mowing 5 days before and after spraying for sedges (3 days for others)

Can mix with Poast for grasses - (sethoxydim)

 

[Dogshooter]

Sledgehammer works great.

I’ve also used Ortho nut sedge killer if you just have to spot spray here and there. It’s handy enough to just keep a bottle in the utv and hit it when you see it if it’s pretty sparse. On my place it’s just a clump here and there once you get ahead of it.

Ortho Nutsedge Killer RTU Liquid 24 oz Mfr# 9994318 - Ace Hardware

Don't let nutsedge take control of your lawn. Ortho Nutsedge Killer for Lawns selectively controls tough weeds like purple and yellow nutsedge (nutgrass), kyllinga, wild violet, dollarweed, dandelion, broadleaf plantain, purslane, pigweed, spurge and other listed sedge and broadleaf weeds. This...

www.acehardware.com

 

[RGrizzzz]

Sledgehammer works great.

I’ve also used Ortho nut sedge killer if you just have to spot spray here and there. It’s handy enough to just keep a bottle in the utv and hit it when you see it if it’s pretty sparse. On my place it’s just a clump here and there once you get ahead of it.

Ortho Nutsedge Killer RTU Liquid 24 oz Mfr# 9994318 - Ace Hardware

Don't let nutsedge take control of your lawn. Ortho Nutsedge Killer for Lawns selectively controls tough weeds like purple and yellow nutsedge (nutgrass), kyllinga, wild violet, dollarweed, dandelion, broadleaf plantain, purslane, pigweed, spurge and other listed sedge and broadleaf weeds. This...

www.acehardware.com

SedgeHammer does work well but it is expensive.

 

[homerj]

$90/gallon for Basagran ain't exactly cheap.

 

[RGrizzzz]

$90/gallon for Basagran ain't exactly cheap.

8-16oz per acre will do a good amount of acres. It's cheaper if you're doing large areas vs buying packets of SedgeHammer to spot treat. A quick search shows $15+ per packet that treats 1000 sq ft.

SedgeHammer Plus Herbicide

SedgeHammer Plus Herbicide

www.domyown.com

The bottle does about 40,000 sq ft (almost an acre) for $60+

SedgeHammer Herbicide - 1.33 oz. bottle

SedgeHammer Herbicide - 1.33 oz. bottle

www.domyown.com

 

[homerj]

8-16oz per acre will do a good amount of acres. It's cheaper if you're doing large areas vs buying packets of SedgeHammer to spot treat. A quick search shows $15+ per packet that treats 1000 sq ft.

SedgeHammer Plus Herbicide

SedgeHammer Plus Herbicide

www.domyown.com

The bottle does about 40,000 sq ft (almost an acre) for $60+

SedgeHammer Herbicide - 1.33 oz. bottle

SedgeHammer Herbicide - 1.33 oz. bottle

www.domyown.com

16-32 oz./acre with 32 being more likely for most foodplotters who oftentimes don't have the best timing for spraying.
Ya. Still cheaper than Sedgehammer if you're covering an entire acre. Sedgehammer is designed more for spot spraying.

 

[bigboreblr]

They more in spots where it gets wet for awhile?

Gly sets is back. You might need a 1-2 punch to get ahead of it. Difficult to completely eradicate. It has a large root system and can keep coming back from it. Hot weather can help the 1-2 punch. I have done gly then basagran. Going to come back, so don't mind getting a bigger bottle of what you use.

Can spot spray with gly while you wait for your weapon of choice to come in.

 

[Victor Van Meter]

I have been hitting it with heavy gly and it seems to kill it after a couple applications. On the negative side of that, it is also killing my clover, so I wil have to overseed it if it ever rains again.

 

[Hoytvectrix]

What most people miss with sedge control is the timing. You really want to treat them early in the season before they start producing the nutlets. Even if you top kill them in the middle or late summer, they will likely return next year. It takes about 2 to 3 years of appropriately timed sprays to remove them.

With that said, I think they are mostly an eyesore and don't mind them. If you have seen marketing materials in the past for chufa for turkeys, you have seen marketing materials for yellow nutsedge. They are the same plant and they may be good to have around if you have light enough soil for turkeys to dig for them.