Weed resistant to Gly

[BobinCt]

I cannot identify the weed, but I sprayed 9 days ago and they are still there but everything else toast. Its a broadleaf. This application I did not use AMS, but do have it. Should I just mix Gly a bit stronger and add AMS, or is there something stronger that I can use to put this weed away. Thx

 

[Bill]

Need to ID it. and where is it? in a foodplot?
Look up pics of Pig weed, Mares tail, cuckaburr even some ragweed.
Could be anything but their the most common around me

 

[Smallplot]

I cannot identify the weed, but I sprayed 9 days ago and they are still there but everything else toast. Its a broadleaf. This application I did not use AMS, but do have it. Should I just mix Gly a bit stronger and add AMS, or is there something stronger that I can use to put this weed away. Thx

First answer a couple things. 1 what strength did you use to spray, 2 what is the maturity level of the Weed, 3 did you get any rain very shortly after spraying, is there a chance the plants can be dormant and lacking moisture right now.

Next identify the plant and look into its know resistance properties.


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[BobinCt]

Bill- looked those up and didn't look like those but will take a closer look again. It's in an old hay field that's been neglected for prob 8-10 years.
Smallplot- I used 62 ounces for 25 gallons. It did not rain shortly after. The plant has matured and not sure if dormant. I gotta try and figure out how to post pics. Be a lot easier.

 

[Semisane]

I'm betting on horsenettle. Tough stuff.

 

[BobinCt]

Semi- I just looked up horsenettle pics and I believe that is it. Any advice how to eliminate it?

 

[Semisane]

Repeated spot spraying with a strong dose of Gly, mowing, or put on some gloves and start pulling. No matter what, don't let it make seed. It's a nightmare if it gets out of hand.

 

[FarmerDan]

Mow it, mow it, mow it, mow it. Then hit it with gly. Horsenettle is a perennial that develops an extensive rhizome root system that sprouts additional plants. It's also a prolific seed producer. The problem with weeds with a rhizome root system is the extensiveness of the underground portion of the plant. You can't get enough herbicide into the plant and roots by just spraying the green part above the surface. So, the strategy is to weaken the root system. Mowing the plant reduces the food supplied to the root. A plant with a small root system or one with a weak larger root system is susceptible to herbicides. Mow it every 30-days through the spring and summer. Then hit it in the fall with a good dose of gly. You may need to do the same thing next year. Just depends on the plants underground antler size.

 

[BobinCt]

Thx guys. Is there possibly a stronger chemical out there than Gly that you would need a license for to obtain and spray that would kill it?

 

[Maddog3355]

Gly won't kill broad leafs. 2 4D will kill it. When your spraying fields to burn down always use gly and 2 4D. What the gly won't kill the 2-4D will.

 

[Buckly]

Thx guys. Is there possibly a stronger chemical out there than Gly that you would need a license for to obtain and spray that would kill it?

I had an infestation in some of my spruce plantings. OustXP did a number on it but, there is at least an 8 month residual with that but you could spot spray if you need to plant something sooner.

 

[buckdeer1]

I bet interline or maybe ignite will kill it

 

[Smallplot]

Here is a big problem with herbicides. Many don't look at the labels and pointedly the size of the weeds listed for best control.

I agree mow it off as it begins to bloom and repeat mowing every 30 days until fall. Then spray about two weeks before first frost.

See this link for some herbicides that are known to work. 2-4-D is not the most effective against this weed but Diacamba appears to work well. Too bad they are beginning to really restrict Dicamba.


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[BobinCt]

Smallplot (Dan) , I see Dicamba+2,4D at Keystonepestsolutions. Is this one ok?

 

[Semisane]

BobinCT, if your plot isn't too large and there's not a ton of horsenettle, walking the plot with a weedeater every now and then is another option.

 

[BobinCt]

Semi- true, it's not that big. It's about 2/3 acre.

 

[Smallplot]

Smallplot (Dan) , I see Dicamba+2,4D at Keystonepestsolutions. Is this one ok?

Yes it would work but best applied at a time when the root system is intaking nutrients for winter storage as in a fall application. Just note that the Dicamba + 2-4d will take out just about any broadleaf present upon application. Look for residual times and plant back (think they are relatively short with this mix) but they are there.

Dicamba and 2-4d are both known to drift (this is the reason Dicamba is being placed on chopping block in many areas) meaning application in times of high heat will be even more prone to drift. On a side note there are a lot of common yard herbicides that contain dicamba. The key here is in application timing in my opinion for what it is worth.


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