2,4-D (Enlist Duo) and dicamba (Xtendimax and Engenia) will be labeled for use this year in certain varieties of soybeans and cotton. Anyone planning to use these products needs to carefully read the labels and be prepared to follow them to a T. The labels are extremely detailed and are written to protect the manufacturer while all the liability falls on the applicator. If you are not prepared for that liability, do not use these products. The labels can be found at the links below:
Remember that controlling drift will be the biggest challenge to using these herbicides and that responsibility falls solely on the applicator. Lots of crops are highly sensitive to 2,4-D and Dicamba including cotton and soybean varieties lacking the Enlist and Xtend traits as well as most fruit and vegetable crops. If a crop has broad leaves (i.e. not a grass), just assume it’s sensitive. Take a look at the tables below from Stanley Culpepper of UGA showing the sensitivity of various crops, nearly all of which are grown in the Pee Dee.
Xtendimax recommendations and precautiouns for SC can be found in the 2017 Pest Management Handbook on page 94 for cotton and page 252 for soybeans. Enlist Duo and Engenia are not included in the 2017 handbook because they were approved after the final editing, so take at look at these UGA publications for more guidelines and precautions on those:
Make sure you know exactly what you’re getting into this season before the sprayer gets to the field. Pay close attention to the information in the labels regarding buffers, wind speed and direction, nozzles, etc. Remember: The liability lies solely on the applicator. If you have any questions, please contact your local Clemson Extension agent.