Armstrong Research and Demonstration Farm
Asian soybean rust, which arrived in the United States in 2004, has the potential to be the single most important impediment to economical organic soybean production in the United States. The economic impact of ASR in organic systems could range from $30 to $120 million in yield loss, upon its arrival in organic soybean areas. The fungus (Phakopsora pachyrhizi) survives year-round in warm areas, such as the southern United States. During a growing season, the pathogen is disseminated by northward seasonal wind.
Iowa State University
Delate, Kathleen; McKern, Andrea; Rosmann, Daniel; and Burcham, Robert, "Evaluation of Organic Soybean Rust Treatments for Organic Production - Neely-Kinyon Trial, 2005" (2006). Iowa State Research Farm Progress Reports. 1007.