Grazing stalks sprouted corn

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MtnCows93
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Grazing stalks sprouted corn

Postby MtnCows93 » Mon Oct 16, 2017 6:04 pm

ive had my cows on cornstalks for a couple weeks now and today i noticed theres alot of lost corn cernals that sprouted and are about 4'' tall now, im worried when we get a frost that it might make those sprouts produce prussic acid. what do yall think?
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Re: Grazing stalks sprouted corn

Postby callmefence » Mon Oct 16, 2017 6:13 pm

I would think it would definitely be possible with a light frost. I would pull em for 2 weeks after. A good hard killing frost should be ok.
You could go ahead and kill it with round up.
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Re: Grazing stalks sprouted corn

Postby M.Magis » Mon Oct 16, 2017 7:40 pm

Would it still occur without extra N being applied?

Accordring to Texas A&M, it doesn’t happen with corn. But I’m sure I’ve read otherwise.
https://stephenville.tamu.edu/topics/fo ... oisioning/
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Re: Grazing stalks sprouted corn

Postby MtnCows93 » Mon Oct 16, 2017 8:00 pm

so a light frost might cause prussic acid and a big killing frost you dont gotta worry about?
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Re: Grazing stalks sprouted corn

Postby callmefence » Mon Oct 16, 2017 8:17 pm

MtnCows93 wrote:so a light frost might cause prussic acid and a big killing frost you dont gotta worry about?


This explains it as good as I've seen.
https://youtu.be/a6ZMw9Os5gA
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Re: Grazing stalks sprouted corn

Postby MtnCows93 » Mon Oct 16, 2017 8:21 pm

ok thanks for the link
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Re: Grazing stalks sprouted corn

Postby MtnCows93 » Tue Oct 17, 2017 9:07 pm

what about spraying it with 2 4 d? i dont want roundup in my sprayer ever. i wonder if alot of people have problems with prussic acid in new sprouts cause ive been searching high and low on the internet and havent found anything so im not completely convinced it will produce prussic acid but i cant afford any dead cows
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Re: Grazing stalks sprouted corn

Postby Jogeephus » Wed Oct 18, 2017 12:24 am

MtnCows93 wrote:what about spraying it with 2 4 d? i dont want roundup in my sprayer ever. i wonder if alot of people have problems with prussic acid in new sprouts cause ive been searching high and low on the internet and havent found anything so im not completely convinced it will produce prussic acid but i cant afford any dead cows


Corn doesn't produce prussic acid. Its possible for you to have nitrate poisoning if you fertilized the corn sprouts heavily but I don't know why you'd do this. Here is a link that echoes what Magis posted.

https://www.vtdairy.dasc.vt.edu/content ... orages.pdf
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Re: Grazing stalks sprouted corn

Postby Lucky_P » Wed Oct 18, 2017 6:21 am

All indications are that prussic acid is not an issue with seedling corn, even if frosted. Highly unlikely that excessive nitrates will be a problem in 4" tall corn seedlings. I'm surprised the cows aren't homing in on those fresh green shoots instead of old dry leaves/shucks.
I sure wouldn't waste time and $$ spraying with a herbicide - that's free feed! 2,4-D only gets broadleaf weeds; wouldn't do anything to corn, anyway.
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Re: Grazing stalks sprouted corn

Postby callmefence » Wed Oct 18, 2017 6:38 am

Yes it looks like I was wrong. I use hybrid Sudan and Johnson grass which I thought was quite similar to corn in pa and nitrate production.
My apologies for the bad info.
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Re: Grazing stalks sprouted corn

Postby skyhightree1 » Wed Oct 18, 2017 3:34 pm

If grazing sprouted corn killed cattle I wouldn't have any I have been doing it in recent years. Let them eat and leave them alone.
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Re: Grazing stalks sprouted corn

Postby MtnCows93 » Wed Oct 18, 2017 6:56 pm

well thanks guys! im glad id dont produce prissic acid, and i looked and they are eating them sprouts like crazy! thats a little bonus feed too
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Re: Grazing stalks sprouted corn

Postby MtnCows93 » Wed Oct 18, 2017 7:03 pm

thats alright fence i sure thought it might and dad was thinking the same
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Re: Grazing stalks sprouted corn

Postby Texasmark » Sat Oct 21, 2017 8:18 pm

MtnCows93 wrote:what about spraying it with 2 4 d? i dont want roundup in my sprayer ever. i wonder if alot of people have problems with prussic acid in new sprouts cause ive been searching high and low on the internet and havent found anything so im not completely convinced it will produce prussic acid but i cant afford any dead cows


24d is for broadleaf weeds. Has to do with their leaf structure. Weeds have one type and grasses and sorghums, corn being a relative have another, a straight grain parallel to the rib. Weeds have a cross linked structure and that's why you can put it out and kill one thing without killing the other....unless you over do it or violate one of the other rules, like wrong weather.

Never heard of PA on corn. TAMU ag extension has www papers on the subject of PA.
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