This site shows a world map with many links to PLACES and PEOPLE working with Spongospora or mop top virus. Klicking on the red, yellow or blue spots will give you a description of the disease situation - powdery scab, mop top, crook root - in each of this countries and addresses of the persons to contact. Black dots represent either places where they used to work with Spongospora but there has been no contact since long time or locations where powdery scab has been recorded once.
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Last update: December 2020