Barbados Nut (Jatropha curcas L.) is one of the most important sustainable energy plant and mainly distributed to tropical and subtropical zone around the world.This plant is also grows in southwestern China, especially in Yunnan, Sichuan and Guizhou province.Its seeds contained high content of oil up to 60％ , and had a broad prospect for biomass resources.In July 2013, a new disease was observed on its seeds brought from local market which were harvested last year.