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Historial Risk Assessment

This project is funded by the USDA to provide a weather-based assessment of the soybean rust threat to North American soybean production areas.
World Assessment of Soybean Rust

World Assessment of Soybean Rust

The work is funded by grants from CSREES, APHIS, and RMA. Scott Isard (PSU), Joe Russo (ZedX Inc), Glen Hartman (USDA ARS), Monte Miles (USDA ARS), Charles E. Main (NCSU), Thomas Keever (NCSU), Roger Magarey (USDA APHIS), and Annalisa Ariatti (Illinois) are key contributors to this project. Components of the ongoing work include:

  • Demarcation of SBR source areas in North America, South America and Africa.
  • Historical analysis of the aerial movement of SBR from Africa to South America. 
  • Analysis of the aerial movement of SBR from South America to North America in 2004. 
  • Spread of SBR in North America.
  • Simulations of the impact of hurricanes on SBR spore movement in North America.
  • Epidemiological studies of SBR

This web page provides information on geographic distributions of SBR and its hosts, reports on aerobiology transport model analyses, animations of model simulations, and links to a variety of other web sites with information on SBR.

PDF, 1.2 MB

The world-wide expansion of soybean rust from 1902 to present.

Starting in 2001, view this animated spread of soybean rust on soybean

Map displaying the spread of Phakopsora pachyrhizi on soybean in Africa

Soybean Rust Spore Detection by County, January 12th, 2005 Observations overlayed on the predicted soybean rust spore deposition map.

Acres harvested in 2002

Percentage of County Area Covered with Kudzu - 2000

Animated map of monitoring efforts in 2006 and 2007.

Animated comparison of NADP collections, IAMS output, and disease observations

Animated maps showing 2005 vs 2006 vs 2007 vs 2008 spread of soybean rust over the year.

Animated maps showing 2006 vs 2007 vs 2008 vs 2009 spread of soybean rust over the year.

Animated maps showing 2007 vs 2008 vs 2009 vs 2010 spread of soybean rust over the year.

Animated maps showing 2008 vs 2009 vs 2010 vs 2011 spread of soybean rust over the year.

Short video on the invasion of soybean rust by way of Hurricane Ivan in 2004.