What happens if soybean rust gets to Iowa earlier in the season?
There are no resistant cultivars available for soybean rust and there may not be for several years. The main management strategy is well-timed foliar fungicide applications. In 2007, several fungicides that received Section 18 labels for soybean rust in 2004 were granted Section 3 labels for use on soybean. Also, a few additional Section 18 fungicides were approved by the EPA in 2007. Section 18 labels for Folicur® and Headline® SBR expired in November, so they will need to be renewed if these fungicides will be available in Iowa in 2008. Below are two lists of fungicides available (or potentially available) for soybean rust. Table 1. Available fungicides for management of soybean rust in Iowa.
