As of today, soybean rust has been found in only five southern states: Alabama, Florida, Georgia, Mississippi, and South Carolina. The disease was found in sentinel plots, commercial production fields, and kudzu plants (see table below). In regions beyond these states, spores that look like spores of soybean rust have been detected by a spore-monitoring project led by the University of Arkansas. A lot more such spores have recently been found in many southern states. In Iowa, no soybean rust has been found in our latest scouting, both in sentinel plots and some production fields.
Iowa State University
Yang, X. B., "Soybean rust update -- August 2005" (2005). Integrated Crop Management News. 1390.
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