The Illinois Department of Agriculture recently announced additional label restrictions for the 2020 growing season for dicamba. Agriculture Director John Sullivan announced the rules due to a dramatic rise in the number of off-target complaints received during the 2019 growing season, adding “the department is taking action to reduce those numbers.”
The new restrictions halt the use of dicamba after June 20, 2020. The new regulations also prohibit the application of dicamba if the air temperature at the field at the time of application is over 85 degrees Fahrenheit, or if the National Weather Service’s forecasted high temperature for the nearest available location for the day of application exceeds 85 degrees.
Applicators also must maintain the label-specified downwind buffer between the last treated row and the nearest downfield edge of any Illinois Nature Preserves Commission site. In addition to these provisions’, applicators must follow the federal guidelines when it comes to applying dicamba, including taking an annual certified applicator training course.