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Management of charcoal rot
Plant Pathology and Microbiology Publications
  • Xiao-Bing Yang, Iowa State University
  • John Shriver, Iowa State University
  • Shrishail Sharanappa Navi, Iowa State University
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In the 2003 growing season, charcoal rot caused by a fungus called Macrophomina phaseolina was prevalent in the soybean fields of Iowa, the first ever statewide occurrence. Damage by the disease was not identified by many producers since the disease was relatively new. Surveys covering areas from northern to southern Iowa showed that in the northern Iowa (north of Highway 3), the prevalence was 60 percent. In central Iowa (between Highway 3 and Interstate 80), 90 percent of fields sampled were positive with plants having M. phaseolina. In southern Iowa (south of Interstate 80), 20 percent fields had charcoal rot infested plants, which was considered an underestimation by Iowa State University agronomists.

This article is from Integrated Crop Management News, IC-142(1) (January 26, 2004): 1–2.

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Iowa State University
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Citation Information
Xiao-Bing Yang, John Shriver and Shrishail Sharanappa Navi. "Management of charcoal rot" (2004)
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