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Broard leaf Herbicide in manure

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  • #1

    Broard leaf Herbicide in manure

    I have used some manure on my veg plot, tomato tubs as well as a rose bed that I believe is contaminated with a broad leaf herbicide.
    Several plants have shown signs of distress; leaves all hard, curled and shrivelled at the tips.
    My tomatoes leaves were as above and the tomatoes have only grown to about a walnut size, so I have a lot of contaminated ground and soil from tubs. I can get rid of the tub soil/compost at the local tip by putting it into the stone and soil bin, but I am at a loss as to what to do about the beds where the manure was used.
    Can anyone tell me how long this will remain in the soil?
    Can it be neutralised in any way?
    You grow it; I'l tell you how to cook it
    Tags: None
  • #2
    Not this stuff I hope - http://www.growfruitandveg.co.uk/gra...lid_59348.html

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    • #3
      We raked it out for ages, and then all you can do is to keep digging it in, rotavating it. It sits there until it comes into contact with the soil and only once that happens, does it start to dissipate.

      We've just had the second year of it; and we've been digging it in. Even beds where it was just stockpiled for a few weeks are badly affected.

      I chucked every last bit I found as I dug onto one bed, and just grew cabbages on it; as they aren't affected. But I am afraid that no matter how much you get out, once it's in it can take a fair while to break down and not affect your crops.


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      • #4
        What type of manure and where did you get it?

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        • #5
          I got the stuff during 2009 at a local stables and farm shop at bold heath close to Warrington.
          I had also had manure from the same pile as early as 2007 without any problem.
          The 2009 lot was first used late 2010 but only lightly scattered on and left to over winter before being dug in the following year.
          In February 2011 I planted a new blackberry and used the manure in a much larger quantity 30/70 in the hole. That is showing signs of contamination so I have been watering twice as much as I might normally. The latest leaves are beginning to form normally. One other thing that has happened is that only one cane has grown when I think I should have had at least three.
          I first stored this manure in a box bin over soil and have since grown Rhubarb on that site. The rhubarb is very weak with very thin stems.
          I am doing as others have done; I am digging every bed as and when available.
          Any more professional advise will be welcome.
          You grow it; I'l tell you how to cook it

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          • #6
            Dow "Protecting our planet is one of Dow's core values"

            advise this (as we know):

            "In our view, rotavation is by far the best practice. This incorporates plant tissue into soils where it will decompose and allow the associated chemicals to be degraded by soil microbes. Once degraded, the chemicals should pose no further risk to crops. Ideally, thoroughly rotavate, or fork over several times as soon as possible, then repeat in late summer/ early autumn.

            What do I do with any remaining manure?
            If you believe that the manure or compost you are using may contain herbicide residues, it should NOT be spread on ground intended for food crops.

            Can I replant this season?
            We would not recommend replanting this year. The ground needs to be thoroughly rotavated and plant residues given time to break down.

            When is affected manure ok to use?
            Aminopyralid decomposes with the help of microorganisms found in soil. Manure that has been well-rotovated into the soil and turned over regularly is safe to use on all but the most sensitive plants after 6 months. Properly incorporated manure is considered aminopyralid free after one year.

            Further comments are on here. It's depressing reading
            Last edited by Two_Sheds; 28-09-2011, 05:00 PM.
            All gardeners know better than other gardeners." -- Chinese Proverb.

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            • #7
              Dow have now amended the product labelling and say "The herbicides [aminopyralid] cannot be used on grassland destined for hay and silage nor on grassland grazed by horses" "to prevent problems with manure"

              "The ...restrictions are explained in detail to every professional farmer who wants to buy a product and a written confirmation of understanding must be completed."

              "“For anyone who has manure and is concerned, please contact us through our dedicated website www.manurematters.co.uk."
              Last edited by Two_Sheds; 28-09-2011, 04:59 PM.
              All gardeners know better than other gardeners." -- Chinese Proverb.

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