Illinois Fertilizer & Chemical Association
Supply · Service · Stewardship

Herbicide Injury on the Rise

Both the temperature and tempers are running hot this summer, as herbicide injury surfaces across the Midwest and South once again.
Dicamba remains the primary source of complaints, although cases of 2,4-D injury are also being reported, state regulators told DTN. In October 2020, EPA granted new labels and five-year registrations to three dicamba herbicides -- XtendiMax (Bayer), Engenia (BASF) and Tavium (Syngenta) -- for use over-the-top of Xtend and XtendFlex soybeans and cottonfields. The agency added some new rules, including national cutoff dates and use of new volatility reduction agents (VRAs) in the tank.
Yet regulators are watching complaints tick upwards in some states, many from soybean fields with uniform cupping injury suggesting volatilized dicamba is still at work. On social media and in rural communities, farmers and retailers are picking sides and fiercely defending their technology of choice, as rumors fly about what causes cupping symptoms in soybeans. (See more on that from DTN here: )
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