Extension field agronomists report the occurrence of soybean top dieback in northeastern Iowa soybean fields this week. Soybean top dieback symptoms have shown up occasionally since it was first reported by Jim Fawcett and Jerry Long in Cedar County a few years ago. Last year it was also found in eastern and central Iowa.
Iowa State University
Yang, Xiao-Bing and Sawyer, John E., "Soybean Top Dieback Shows Up in Iowa Again" (2008). Integrated Crop Management News. 780.
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