In October 2017, the Environmental Protection Agency reclassified Engenia®, FeXapan™ herbicide Plus VaporGrip® Technology, and Xtendimax® With VaporGrip® Technology as Restricted Use products and added additional restrictions and requirements to their use. One of the additional requirements stated that anyone wishing to apply these products must attend a dicamba or auxin-specific training. Recently, the Iowa Department of Agriculture and Land Stewardship issued Sec. 24(c) Special Local Need labels for Engenia®, FeXapan™ herbicide Plus VaporGrip® Technology, and Xtendimax® With VaporGrip® Technology. The 24(c) labels require all applicators that intend to apply these products to attend an Auxin Herbicide training that has been approved by the Iowa Department of Agriculture and Land Stewardship Pesticide Bureau and offered by a registered Auxin Herbicide training provider. The Agribusiness Association of Iowa is hosting a website, dicambatrainingiowa.org that will list the dates, times, and locations of programs that have been approved by the Iowa Department of Agriculture and Land Stewardship. The information listed will be updated as training programs are approved.This website also provides additional information related to the regulations of dicamba-based products for use with dicamba-resistant soybeans. Applicators must retain records that show they attended an IDALS approved auxin training prior to use of the product. Auxin training is not required prior to purchase or sale of Engenia®, FeXapan™ herbicide Plus VaporGrip® Technology, and Xtendimax® With VaporGrip® Technology in Iowa.
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Source: Iowa State Extension