Extension specialists see widespread dicamba injury

Off-target dicamba injury this year “is the most extensive it has been since the introduction of di­camba in the 1960s,” Iowa State University (ISU) weed specialists Bob Hartzler and Prashant Jha wrote last week on the ISU Integrated Crop Management blog. 

“ISU (Extension) field agronomists and commercial agronomists in several areas of the state report nearly all non-dicamba re­­sistant soybean are showing symptoms characteristic of dicamba, and in many fields, the injury is fence row to...