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The damage likely originates from use of Monsanto's dicamba and Dow's 2,4-D formulations on nearby cotton fields. The companies sell cotton seeds that are genetically modified to withstand applications of the weedkillers. If farmers use the products improperly, the highly volatile chemicals can get picked up by the wind and land on off-target crops. When exposed to the herbicides, the leaves on non-target plants are often left cupped and distorted.
The agribusiness giant makes a version of the herbicide called XtendiMax that's paired with its seeds that are genetically engineered to resist the product. DuPont Co. and BASF SE also sell their own dicamba-based formulations.
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Herbicide drift has been a major problem last year damaging millions of acres of crops in the U.S.
An organic farmer in Missouri has seen firsthand how destructive herbicide drift can be as it destroys his crops and threatens his livelihood and farm.