I have been receiving questions about sudden death syndrome (SDS) on Roundup Ready soybean because some press reports based on a study by Missouri researchers have implicated the possibility of occurrence of SDS after Roundup (glyphosate) application. The preliminary results of the Missouri study were presented as a poster at a meeting. The study indicated that Roundup Ready (RR) soybeans receiving glyphosate at recommended rates had significantly higher incidence of Fusarium fungi on roots 1 week after application compared with soybean that did not receive glyphosate.
Iowa State University
Yang, X. B., "SDS on Roundup Ready soybean" (2001). Integrated Crop Management News. 1961.
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