Soybean Rust Spore Detection by County, January 12th, 2005. Observations overlayed on the predicted soybean rust spore deposition map. Map compiled by Annalisa Ariatti (UIUC) Source: APHIS Soybean Rust Hot Issues Web Page, Dan Borchert, Glenn Fowler and Roger Magarey (USDA-APHIS-PPQ-CPHST-PERAL)