Integrated Crop Management News

Document Type


Publication Date



Last year, soybean rust was found in Texas in early November—a significant finding because this region has been a source for rust diseases of other crops, such as wheat. It is commonly considered that windborne spores are likely to move more efficiently to northern soybean production regions from Texas than from southeastern regions (Florida and Georgia). However, soybean rust differs from wheat rust in a growing season, and therefore, its risk has not been calculated previously. In this article, we provide our modeling results to assess one important early factor: the potential for spore production in Texas early in the season using historical climate data.



File Format





The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit