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Aminopyralid in manure

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Killer Compost

Post  Nonna.PapaVino on 1/26/2013, 12:09 pm

According to the article in Mother Earth News, when an independent lab in Moscow, Idaho, tested the 84 samples of composted horse manure, 67 samples were found contaminated (80% of the samples). However, when Dow, on behalf of the Vermont Agency of Agriculture, sent samples to its own contracted lab, Carbon Dynamics, the tests detected no pcloram, but did fine low levels of clopyralid in 5 samples. Hmmmm. Who do we believe? Only thing we can do as organic farmers/gardeners is: write to our congressmen/women, AND to:

Richard Keigwin
Director of EPA's Special Review and Reregistration Division
email: keigwin.richard@epa.gov


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Re: Aminopyralid in manure

Post  southern gardener on 7/3/2015, 3:56 pm

This is real. I'm SURE this is what we had in our soil a couple of years ago, although the company would not officially tell us. Watch what you put in your composts and gardens!!! And to think we're eating this stuff Sad What a Face What a Face What a Face What a Face
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Re: Aminopyralid in manure

Post  Scorpio Rising on 7/3/2015, 4:39 pm

Honestly, I did this year's start up boxes with bags of peat, manure and vermiculite from either my KMart or local garden center.  They were touted as "mixed" manure, and they have performed really great so far.  Plants all doing great, flowering, stting fruit, have harvested early crops.  

Having said that, I have started a list of local farmers, who I was going to be calling to see if I could get some of their horse, cow, chicken, and sheep pooh.  And I have a compost pile in addition.  

Now that I see this post, Ineed to ask some questions.  What evactly do I need to ask the farmers about as far as what their animals are eating?  Is there a brand name?study
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Re: Aminopyralid in manure

Post  mollyhespra on 7/3/2015, 9:43 pm

I think if you're in a rural area, the best thing to do would be to visit the farm and have a look-see at their manure pile.  If it's composted, then there should be things like clover and other plants growing somewhere in/around the pile.  If there are no weeds, be suspicious.

Another resource might be a local organic farm that grows veggies to sell.  Make friends with the farmers by buying their produce and ask if they make their own compost and what they make it out of. They may be willing to sell you some.
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Re: Aminopyralid in manure

Post  sanderson on 7/4/2015, 4:02 am

Scorpio, Any herbicide. I think finding info on what herbicide, if any, was used may be difficult. Here's a farmer growing wheat or alfalfa for ranchers. Along comes a home gardener wanting to know if he uses a herbicide. If he doesn't use anything, no problem. But if he does, there goes the loving relationship between them. I did a quick search for costs for herbicide testing but didn't find what I was looking for.

Molly, Good suggestions.

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Re: Aminopyralid in manure

Post  Scorpio Rising on 7/4/2015, 9:21 am

OK, thanks Molly and Sanderson.  I will definitely be going to their farms.  Have been to the cow farm, very green as I recall.  Cows out in the fields grazing, but I did not look at the manure piles!!!!  Now, I will lol!  They were bailing alfalfa and clover for them I do recall that.  

What you never knew.....wow.
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Re: Aminopyralid in manure

Post  Turan on 7/4/2015, 3:30 pm

My understanding is that the systemic herbicides that persist are mostly used on hay that is sold as certified weed free.  That hay in my area is sold to horse farms, especially any that go in the back woods.  You have to have certified weed free hay for the national forests because horses are the source of many invasive weeds.  Generally speaking horses are fed grass hays rather than alfalfa.

The other piece to this is what kind of hay, grass or alfalfa/clover?  Herbicides sprayed on grass kill broad leaf plants, which include alfalfa and clover.  Herbicides sprayed on alfalfa are going to be safe for broad leaf plants, especially those closely related to alfalfa like peas and beans.  Dairies feed almost all alfalfa hay.

Straw is often/usually sprayed with 2-4D, at least in my area.  This makes it a questionable mulch for broad leaf plants.  I have found that by the time the straw has been used in a lambing jug and then composted (by then at least a year has passed since spraying occurred) that the compost is safe in the garden.
Here is a good link on straw and 2-4D http://tendingmygarden.com/garden-mulch-straw-does-it-have-to-be-organic-to-be-safe/

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Re: Aminopyralid in manure

Post  sanderson on 7/4/2015, 3:44 pm

Turan, Thank you for the link.

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