June 20th Dicamba Cutoff Takes Effect

Today, May 6, is the last day that dicamba-tolerant (DT) soybeans can be planted in Illinois and Indiana where the 45-day after planting dicamba cutoff still applies. Any DT soybeans planted in these states after today will either have a dicamba application cutoff of June 20 or R1 growth stage, whichever comes first. The R1 growth stage, or first bloom, is whenever a flower is detected anywhere on the soybean plant (see picture below). As we get further into the spring, rising temperatures and potential cutoffs could make it more difficult to apply Engenia on your DT soybeans. Therefore, the best chances of utilizing Engenia in your weed control program moving forward is to include it in pre-emergence or early post-emergence applications. Pair Engenia with a residual herbicide for a combination to control emerged weeds and prevent weed emergence for several weeks after application. Also, don’t forget that, in Illinois, there is an 85-degree temperature cutoff for Engenia and any other dicamba formulations approved for use on DT soybeans. If the temperature at the time of application is above 85 degrees, do not spray. In addition, if the forecasted high for that day is above 85 degrees, that entire day is off limits for application. Check www.weather.gov to determine forecasted temperatures for the area of planned application.


Always read and follow label directions, and make sure to maintain complete and accurate records for Engenia applications.