Effects of 2,4-D

Discussion in 'Habitat Forum' started by Fowler267, Aug 9, 2017.

  1. Porter Bayou

    Porter Bayou Senior Refuge Member

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    They're gonna need it to cover the big check they're gonna eventually have to write. image001.jpg
     
  2. Fowler267

    Fowler267 Elite Refuge Member

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    So is Dicamba like an improved version of 2,4 D? Broadleaf killer only?
     
  3. thatguy2

    thatguy2 Senior Refuge Member

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    Driving to work this morning they were talking about it on Ag Talk. More and more damage coming in. A buddy had his 160 sprayed and got neighboring fields a quarter mile away. He is nervous. Co-op won't spray it anymore.

    Heck one farmer killed another over its use in AR.
     
  4. jzoo

    jzoo Senior Refuge Member

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    Yes it will be interesting to see how this turns out. At some point, does the EPA share any liability? After all, they are the ones that approved the product for use and tested it to make sure it worked according to label. As of February, the EPA had not approved any tank mixes, only one adjuvant and one nozzle. By April there was many tank mixes/adjuvants/nozzles approved....just smells fishy to me.

    The other thing is, millions of acres of corn have been sprayed with straight dicamba for years, and we have had the same drift issues and soybean injury (it usually comes out of it), but nobody made a big deal about it until this year with the new products that weren't supposed to drift. This will make it hard to prove that Xtendimax/Engenia were the products causing the current soybean injury. Monsanto will just say it was drift from the cornfield down the road that was sprayed with Banvel.
     
  5. jzoo

    jzoo Senior Refuge Member

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    Yes it's a similar mode of action as 24d, but it works better and when you combine the 2 it's real good. The problem with it is, it can volatilize out of the plant leaf up to a few days after application and drift for miles. High temperatures and low humidity are what cause it to have problems. But spot spraying a couple oz here and there, shouldn't be an issue.
     
  6. bwelty

    bwelty Elite Refuge Member

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    Bump up the 2-4d rate and when are you spraying (time of day), make sprayer more coarse in droplet size, and is this area getting any sunlight?
     
  7. Greekangler

    Greekangler Senior Refuge Member

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    2oz per gallon and 10z of dawn is my basic concentration. I have sprayed 20-30 minutes before rain and still worked pretty well
     
  8. cootmeurer

    cootmeurer Elite Refuge Member

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    2,4-D, 2,4,5-T, Dicamba/Banvel/Clarity, MCPA, etc... Are all growth regulators. They cause the plant to grow beyond its ability and destroy itself in the process (oversimplified but close enough). For a growth regulator to work you need the plant to be actively growing and not dormant. During periods of drought, high heat or low cold a plant can become resistant to growth regulators if their growth has slowed.

    That being said - as others have mentioned, your rate was too low. You might also find better control on tough weeds like cocklebur with a different formulation (like LVE, low volatile ester, rather than the more common Amine formulation) or by adding crop oil rather than surfactant (soap).
     
  9. Fowler267

    Fowler267 Elite Refuge Member

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    I was doing it in the morning up to about noon. Mostly in the sun.
     
  10. Fowler267

    Fowler267 Elite Refuge Member

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    We have high temps but also high humidity to go with it.
     

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