2-4 D on oats

lee little · May 25, 2017

I have a good looking field of oats except for the various broadleaf weeds that have started in it. Between my schedule and the rain I wasn't able to spray them when they were small. They are quickly approaching knee high. I would really like to combine them but there are enough weeds to make this difficult. Are they too far along to spray with 2-4 D? Would dicambia be any better? I guess I could make hay out of them but I could really use the oats. Thanks for any help/advice. Lee

Billy NY · May 25, 2017

Not an expert by any means, but it's been done here near that height with good results. We combined a weedy mess on another farm and the grain had a lot of other undesirable things in it. Even in some areas of our fields that were sprayed, there were a few areas of weeds but we got the grain off it with the rest. The straw was mixed with weeds and not clean like the rest. Depends on what kind of weeds and what stage of growth. Oats will shade out weeds a good long while, but as soon as they start to let light in when ripe, weeds will come up quickly.

rusty6 · May 25, 2017

I don't think we ever used 2-4D on oats for weed control as it is hard on the crop. Used something with Dicamba in it.
http://www.poga.ca/grower-manual/weed-management
Prairie Oat Growers

P I Pete · May 25, 2017

If I remember correctly I used MCPA to spray oats had to be done befor heading out or it would keep it from producing grain, giant rag was the big nemesis.

Pete

MNGB · May 25, 2017

I have spared Oats with mcpa 1/2 to 1 pt per acre up to but not in the boot stage.
GB in MN

lee little · May 25, 2017

Thanks to everyone. I hate to show my lack of knowledge but what is MCPA?

Dave H (MI) · May 25, 2017

It's a herbicide. Check at the elevator, they can help.

lee little · May 25, 2017

Thanks Dave

DoubleR · May 25, 2017

We used it on oats back in the sixties, I don't recall the rate per acer and don't really recall how good the results were. Being a kid I just did as I was told. Read the label and follow it. I would think there would be a better more improved product to use on oats since that was so long ago. I would talk to your supplier and maybe he can suggest something better. I don't raise oats but I do still use 24D for other uses.

coonie minnie · May 25, 2017

I think the best advice I can offer is consult someone you trust, like a local agronomist. Then if you are doing the applying, READ THE LABEL. That is probably the most important part. Googling any product should produce the label online.

We do the best we can here, but we are a bunch of people you've never likely met in person who may or may not be experts.

I think herbicide needs to be on before heading (it does with wheat) and may be possibly too late now. Good luck with it.

craigco · May 25, 2017

Seems like the labels usually say to spray before it has three joints in the stem. I got behind last year and sprayed at three joints. Killed weeds with spray and oats with the tires. Around here oat is made into hay.

lee little · May 26, 2017

I read the label before I posted and it basically said use before the boot stage. Our local "expert" {county agent} is known to tell people to consult the internet. I am not sure he could tell oats from wheat. This group almost always has a large amount of knowledge on most farming subjects. I am going to call my local co-op this morning. They are pretty good and always helpful. The drawback is not many oats are grown here anymore. I am not sure how much experience they will have with them. Thanks so much for everyones replies . As usual there is a wealth of knowledge here!

paul · May 26, 2017

I used generic bucktril last year, that worked pretty good on broadleaves.

I've spot sprayed 24D in the past at any old time chasing thistles and giant rag weed, at certain times it hurts yield but not as much as the weeds going to seed would have.....

Paul

hd6gtom · May 26, 2017

Another name for mcpa is Rhomene, used to kill broadleaf weeds in oats etc.

RodinNS · May 26, 2017

MCPA is usually less damaging to the crop... Reality is that if the weeds are knee high all you're likely to do is slow them down a bit. Best advice I can give you is determine what weeds you have and select something to target those weeds, based on product label advice...

Rod

2-4 D on oats

lee little

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Billy NY

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rusty6

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P I Pete

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MNGB

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lee little

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Dave H (MI)

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lee little

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DoubleR

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coonie minnie

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craigco

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lee little

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hd6gtom

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RodinNS

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