2-4-D

ohiojim · Jun 7, 2011

anyone know if i can use 2-4-D in pasture that is being grazed by cow and sheep ?? have some thistle and plantain growing where it is hard to mow....not spraying whole field just spots

Tom-TX · Jun 7, 2011

I used Grazon P + D and there was no grazing restrictions, except for lactating dairy cows. The Grazon P + D contains another chemical plus 2-4-D, and is the widely used one around here. Tom

GeneMO · Jun 7, 2011

I agree that Grazon is better on spot spraying thistles. It knocks them in the head!! But, If you have 2-4-D, I dont think spot spraying would be a problem.

As long as it isn't dairy cows.

Gene

tomNE · Jun 7, 2011

If i were spot spraying; I'd use tordon and forget the 24d or grazon. the 24d burns the top of the plant before the tordon can get down to the roots. the roots regrow the thistle every year.
tordon is a restricted use chemical. the cheapest way to buy it is by the gallon. RTU gets sort of expensive but no permit is needed.
grazon is a mixture of 24d and a very small amount of tordon. I consider it a very over priced chemical; but again no permit is needed.

Mike (WA) · Jun 7, 2011

Wouldn't worry if just spot spraying. I broadjet sprayed a field last Saturday with 2,4D- restrictions are 7 days for lactating animals, 30 days for animals to be slaughtered. No restriction at all for others. We're not going to graze it for a week anyhow, just on principal.

Anonymous-0 · Jun 7, 2011

Don't know what RTU you are buying, but I was using it by the "boat loads" on cut stumps and was getting pretty expensive. We looked up Grazon and by cutting it 50% it was the same as RTU, but less than 1/2 the price. Might not contain much Tordon, but apparently neither does RTU. Had an area that I have fought thistle for the last ten years. Continued to slowly thin them out with Roundup, 2-4-D, and occasional mowing, but never could eliminate them. Finally sprayed them individually with the 50% Grazon and no more thistles. Stinger I've heard will also smoke them.

paul · Jun 7, 2011

One trick to killing off thistles is to go after them in fall, not spring. In spring they flow sap from the roots to the buds, to make a good seed head. In fall they flow sap from the leaves to the roots, to build up their root system.

Hit them hard in the fall, and they will die off much quicker.

Sorry for the thread drift.....

I think the restriction is 7 days esp for milk, and I try to leave it at that myself, tho not much trouble for grazing in a spot-sprayed field.

--->Paul

GordoSD · Jun 7, 2011

Wrong. Grazon is restricted use. Latest best price I've found was 23.50 per gallon but that was on (5) 30 gallon barrels purchase.
Hefty Seed. yup the ones on TV.

JDseller · Jun 7, 2011

2-4-D will not kill thistle. The best product I have ever used on thistles is "Hired hand" from Dow chemical. It does not kill grass but will kill thistle in less than twenty four hours. In three days they are dead dry. I have used just about everything out there and none of them are even close to Hired Hand on thistles.

It is a restricted chemical. It is labeled for CRP and permanent pasture. I have used it the last few years and have been able to just about clear all of my ground of thistles. I had one patch of Canadian thistles that was about three hundred feet in diameter. They where on this one farm when I bought it twenty years ago. I had tried just about everything on this patch. I would get a kill but then they would regrow from the roots. I sprayed that patch twice three years ago, late spring and then late fall. The next year there where only about twenty plants in the whole patch. I sprayed them and have not had any back there since. I usually will not really push a product but this stuff works.

James Greenfield · Jun 8, 2011

2-4-d will kill sheep in spot spraying and maybe cattle too I don"t plan on finding out!

RodinNS · Jun 8, 2011

I'm fairly sure there is a withdrawl time for 2-4D though I'm not sure that it is without looking.
Regardless, mowing is the best cure for thistles. The animals will eat the plaintain and do well on it. IT actually tests quite good as a feed. Biggest problem is that it doesn't make a big crop.
The thistles tho... mow them frequently so that tehy don't set seed. When they're expending energy growing top they deplete their root system and you'll find that most will not survive the winter. Might take a couple years but it should clean them up.

Rod

2-4-D

ohiojim

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Tom-TX

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GeneMO

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tomNE

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Mike (WA)

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Anonymous-0

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paul

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GordoSD

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JDseller

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James Greenfield

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RodinNS

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