Mowed Field (image) Penn State Caption Agricultural researchers are advising extra caution when using herbicides dicamba and 2,4-D, which are frequently involved in herbicide-drift accidents. The researchers recommend spraying low-volatility blends, using a nozzle design that reduces the chances of drifting and applying the herbicides on less windy days, if possible. Credit J. Franklin Egan Usage Restrictions Non commercial use only Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.