PHOTO: Soy leaves that were damaged by the weedkiller dicamba as part of University of Wisconsin research into whether the herbicide drifted from where it was sprayed in Arlington, Wisconsin. Photograph: Tom Polansek/Reuters
PHOTO: Soy leaves that were damaged by the weedkiller dicamba as part of University of Wisconsin research into whether the herbicide drifted from where it was sprayed in Arlington, Wisconsin. Photograph: Tom Polansek/Reuters