Soybean rust, Phakopsora pachyrhizi, was first reported in the United States in November 2004 and survived winters on kudzu in the south. Soybean rust can reduce soybean yields and/or significantly increase the cost of soybean production when the disease occurs during the growing season with high incidence and severity. During the 2005 and 2006 growing seasons, soybean rust was not a threat for Iowa soybean growers. This year was a different story, as soybean rust was established fairly early in the season in Texas and Louisiana creating the potential for soybean rust to get to Iowa during the growing season. Thankfully, soybean rust was not found while soybean plants were in a vulnerable stage; however, soybean rust was found in a field in Dallas County, Iowa, on Tuesday, September 25, 2007. Since the initial find, soybean rust was confirmed in 13 additional counties throughout Iowa (Figure 1).