Auxin Training & Recording Keeping

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Field crop producers within North Carolina that wish to apply auxin herbicide products to auxin tolerant plants (cotton and soybean) are required to have a valid pesticide license and attend the EPA required training sessions. These training sessions are typically offered during the winter months by North Carolina State University faculty. However, for emergency application, training is also available by appointment from local N.C. Cooperative Extension offices.

Those applying auxin herbicides are also required to keep separate record for each application. The NCDA & CS has published a booklet with the specific requirements for such records. To obtain this 2022 Auxin Record Keeping Manual, contact a local N.C. Cooperative Extension offices or the NCDA & CS Pesticide Division.

Auxin herbicides, due to the broad spectrum of plants potentially impacted, require very specific documentation and restrictions. A summary of a few restrictions for dicamba products are listed below. Consult the individual product label for further information and guidance.

  1. Applicators must have a NCDA & CS pesticide license and record this certification number for fields applied.
  2. Applicators must retain their proof of completion of EPA training
  3. Receipts of purchase and product labels should be kept with records.
  4. A 240 ft downwind buffer is required for all applications. This buffer can be reduced to 110 feet if using a qualified hooded sprayer.
  5. Start and finish time must be recorded for all applications.
  6. Weather data must be monitored and documented for all applications.
  7. Specific nozzle selection and pressure is regulated and suggested at the manufacturer’s product website.
  8. Tank mixes with other products are only allowed if approved by the manufacturer. The EPA registration number and brand name of tank mix partners must be included in the records.
  9. Prior to application, applicators are to examine the Endangered Species Protection Bulletin for potential negative impacts or prohibitions due to endangered species.
  10. Prior to application, applicators must visit registries for sensitive crops or areas. Within NC, this registry is Field Watch. This site also provides information for sensitive crops and location of bee hives.
  11. Spray systems must cleaned according to label requirements. This includes tank, nozzle, hoses, and filter systems. Date of cleaning and methods must be documented.