This could be the world’s shortest ICM News article. It could simply read “soybean rust, meh”. But I will take some time to explain. We have identified three critical steps that must happen for rust to get to Iowa. They are (1) to survive winters somewhere in the south, (2) build up inoculum (spores) where survival occurs and (3) movement of these spores to fields further north and successful infection of soybeans in those fields. These steps may need to reoccur several times for rust to get to Iowa.
Iowa State University
Mueller, Daren S., "2010 Soybean Rust Update" (2010). Integrated Crop Management News. 447.
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