This tool displays the frequencies of Puccinia striiformis races as recorded in Europe, Africa and Asia, and in America during the period 2009 until current year.

• Select the Year via the drop down list
• Select the Continent via the drop down list
• Select one or more countries.
• Select “All” to select all Countries, or, deselect all Countries
• Select Show to update the map with selected values
• Selet the i icon to show the virulence phenotype for each race
• Select the icon with a question mark to get the documentation for methods and terminology behind races, genetic lineages etc.

Exact GPS location on map cannot be granted