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Discussion on Pasture Downtime after Spot Spraying with Roundup

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Sue G
Member
Username: Warwick

Post Number: 357
Registered: 4-2002
Posted on Wednesday, May 31, 2006 - 12:11 pm:   Edit PostPrint Post

Does anyone know the amount of time needed for horses to stay off pasture that has been spot sprayed with Roundup weed killer?

I checked the bottle but it doesn't indicate a timeline.

Cheers
Sue
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Ann Schrichte
Member
Username: Annes

Post Number: 148
Registered: 10-2002
Posted on Wednesday, May 31, 2006 - 4:10 pm:   Edit PostPrint Post

I asked my vet one time when I planned to spray weeds in a fence line. She suggested waiting until after the first good rain.
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Sue G
Member
Username: Warwick

Post Number: 358
Registered: 4-2002
Posted on Wednesday, May 31, 2006 - 4:23 pm:   Edit PostPrint Post

Thanks, Ann. That's kind of what I was thinking too and luckily it's forecasted to rain tomorrow. In the meantime they are all stuck in their winter paddocks looking miserable.

I've never used Roundup in the fields before - just around the garden where the horses don't have access. The darn bottle just says to keep people and pets off sprayed areas until they are dry but nothing about the length of time to keep livestock off pasture.
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Angie
Member
Username: Ajudson1

Post Number: 487
Registered: 6-2003
Posted on Wednesday, May 31, 2006 - 4:49 pm:   Edit PostPrint Post

I'd also wait until a good rain. I read once that Roundup was shown to show up in a test plot, think if was lettuce they planted. Said the lettuce had traces of the chemicals in it, this I thought was after a plot of ground was sprayed, then worked up, and planted. I've used it too, but now try to just mow and weed wack instead of kill the weeds with chemicals. It's not like anything stays dead anyhow, the weeds will come back.

I thought the guys at our feed mill said like 6 weeks after spraying?? Just something to think about, if you have alternatives like a mower or weed wacker might consider that. Roundup is some more crap to get in our ground water.
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Vicki Zaneis
Member
Username: Vickiann

Post Number: 232
Registered: 3-2005
Posted on Wednesday, May 31, 2006 - 9:49 pm:   Edit PostPrint Post

Spraying weed-killer on certain toxic plants (or just weeds in general) can, for some reason, make them more palatable to animals -- something to consider when spraying weeds.
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Sue G
Member
Username: Warwick

Post Number: 359
Registered: 4-2002
Posted on Wednesday, May 31, 2006 - 10:34 pm:   Edit PostPrint Post

I ended up phoning the company. They said to wait 7 days. Ugh, I should have just mowed instead...
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Imogen Bertin
Member
Username: Imogen

Post Number: 789
Registered: 4-2003
Posted on Tuesday, Jun 6, 2006 - 3:05 pm:   Edit PostPrint Post

That's on the conservative side. Glyphosate (the active ingredient) is supposed to persist for only about 3 days especially if you have sunshine.

All wilted weeds whether cut or sprayed are more palatable than the fresh version. Personally I take my scythe out and go at them by hand so I can check what weeds they are and take away anything nasty, but that's not practical on large acreages. The others (docks etc.) the horses love to eat once they are a bit wilted.

Almost everything else in terms of weedkillers needs at least 2 weeks and make sure there aren't any dying weeds that are palatable to grazing animals as well.

This particularly applies to ragwort which must be pulled up by the roots and burned not sprayed. Nothing else will make your pasture ragwort safe.

All the best

Imogen
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Susan Craig
New Member
Username: Scraig

Post Number: 3
Registered: 7-2006
Posted on Thursday, Jul 27, 2006 - 2:04 pm:   Edit PostPrint Post

My county extension agent recommended a product called "Weedmaster" that he said only had a 7 day wait. The bottle said there was no wait period and the employee at the feed store backed it up. I was still sceptical so I e-mailed the company and they confirmed there is no wait. I do think you have to at least wait until the product has dried. Good luck!
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Sue G
Member
Username: Warwick

Post Number: 420
Registered: 4-2002
Posted on Friday, Jul 28, 2006 - 12:06 pm:   Edit PostPrint Post

Thanks so much for the info about Weedmaster, Susan. I'll definitely look for it next time I'm out shopping. Hopefully it is available in Canada.

Cheers
Sue
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