Any ag fields nearby? Looks like what happens to beans affected by dicamba drift.Anyone know what is causing the leaves to curl up on some of my Chestnut trees?
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I water them once a week with a slow drip type soaker hose so I don’t think it’s due to lack of water.
Matt
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Any ag fields nearby? Looks like what happens to beans affected by dicamba drift.
So lame. Farmers on newagtalk post about this happening every day. I can’t believe dicamba is still available after the cluster$&@& last year.
If you were a big farmer fighting glyphosate resistant pigweeds you might have a different perspective on why it is still available.
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I’m not so sure about that. I’m not too excited about spraying chemicals that can volatize 48 hours after application and kill my neighbors stuff half a mile away.
Edit: But your point is valid. Weed resistance is an important issue. And maybe dicamba is not to blame for everything that it has been blamed for recently, but there clearly is an issue with this chemical.
I wonder if it's an Ester or Amine formulation. Ester is way too volatile to spray in high temps. Usually each county will have spraying restrictions as in spraying when the wind is over 10 mph etc.. when spraying a phenoxy herbicide. He may have used an Ester formulation which is way more likely to volatilize and do damage down wind. If he did that is not in compliance with the label in summertime temps and he may be liable for damages.
What about farmers spraying it over pasture land for hay production? This is what I think for me. I am close to an ag field but it is planted in corn and cotton. Two crops you’d probably not want to spray dicamba on.
Matt
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Yeah your right I think they may have sprayed 2-4-D in an ester formulation and it's volatilizing and drifting. There are a lot of products for pasture weed control with 2-4-D & dicamba and or MCPA / MCPP or triclopyr in them but it's the 2-4-D that if it's an ester it gasses off In high temps. If it's an amine it wouldn't have drifted as far unless it was sprayed in a wind storm which most people know you can't do that.I believe you are thinking about 2,4-D which is another Auxin herbicide but still very different from dicamba. The three formulation salts of dicamba offered on the market today are the DMA (dimethylamine), DGA (diglycoamine) and the newest salt, BAPMA (Bisaminopropyldimethylamine).
Only two formulations are labeled and registered to be used over the top of dicamba tolerant soybeans and cotton (Xtend crops). Those formulations are either the DGA salt with the VaporGrip volatility reducing additive or the BAPMA salt.
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How are your trees doing?