One of the requirements for the registration of XtendiMAx, Engenia, and FeXapan is the investigation of any non-performance (ineffective control) by the respective companies, which then has to be reported to the U.S. EPA. The goal of this reporting is apparently to try to track the development of resistance as soon as it occurs in a few fields, which would then allow time to modify practices so that the rate of resistance in other fields is slowed. We encourage growers and consultants to take the time to scout for non-performance, within 14 days after application according to information from labels. Problems with control can be reported to the three companies via online sites or toll-free numbers as follows, or directly to company representatives.
Monsanto (XtendiMax) – 1-844-RRXTEND
BASF (Engenia) – www.Non-Performance.BASF.US
DuPont (FeXapan) – 1-888-6-DUPONT
Problems with off-target movement from spray particle drift or vapor drift (volatility) can be reported to the three companies the same way. We would encourage growers experiencing these problems to contact the companies or their representatives, but unlike non-performance, they are not required to investigate and report these to the USEPA. Given that these problems are usually the result of not following label guidelines or appropriate application practices, the primary contact would be the Ohio Department of Agriculture. Contact the ODA Pesticide and Fertilizer Regulation Section at 614-728-6987.