Based on our experience with corn rusts, we suspected that disease outbreaks occurring in Florida and southern Texas in March and April would be an indication that rust spores would likely be available to move to Gulf Coast states. The earlier an outbreak occurs in the South, the higher the risk for northern soybean production regions. Since the first detection in kudzu in central Florida in late February, no outbreak was observed in the last two months. The first detection outside Florida on volunteer soybeans was confirmed in southern Georgia.
Iowa State University
Del Ponte, Emerson M. and Yang, X. B., "Soybean rust update - May 2, 2005" (2005). Integrated Crop Management News. 1391.
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