Source: Iowa State University



XB Yang, S.S. Navi and John Shriver, Department of Plant Pathology and Ken Pecinovsky, Northeast Iowa Research and Demonstration Farm, Iowa State University, say, since the report of Asian soybean rust in South America in 2001 and then in the United States in 2004, interest in fungicide applications in soybean production has increased consistently, making use of fungicides on soybeans a hot topic.



Survey of the literature related to fungicide use on soybeans shows a disagreement among researchers, university extension recommendations, and industry applications. We have been puzzled by the discrepancy and recognize that the soybean price doubling was a driving force to fungicide sprays. But we are not sure if it is the only force.



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