Bonus Episode: Dicamba vs. 2,4-D – a tale of cupped leaves? (7/16/21)

This episode featured featured Drs. Debalin Sarangi, Extension weed management specialist, Tom Peters, Extension sugarbeet agronomist, Seth Naeve, Extension soybean agronomist, and Bruce Potter, Integrated Pest Management Specialist, to discuss cupped soybean leaves. Cupped soybean leaves are no rarity in Minnesota; however, the number of fields with cupped, wrinkled, and or strapped soybean leaves in 2021 is quite extraordinary.

Today is July 16, 2021, and earlier this morning we recorded another episode of the Strategic Farming: Field Notes program.  The Field Notes program is a weekly update on the current crop situation and crop management considerations.  Today’s session was moderated by U of MN Extension Crops Educators David Nicolai and Jared Goplen.  The special guests included Dr. Debalin Sarangi, Extension weed management specialist, Dr. Tom Peters, Extension sugarbeet agronomist, Dr. Seth Naeve, Extension soybean agronomist, and Bruce Potter, Integrated Pest Management Specialist, to discuss cupped soybean leaves. The fact that many fields of Enlist and other traited soybeans are showing these symptoms has many wondering if dicamba drift or volatilization may be to blame. Yet, reports of isolated soybean fields that have been sprayed with simple one-product herbicides and now show symptoms abound. So, what is to blame for all this cupping in drought-stricken regions of Minnesota and the Dakotas in 2021?

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