China OKs anthraquinone biofungicide
China has approved the production of a biofungicide based on anthraquinone compounds extracted from rhubarb, reports the Chinese agrochemical newswire, agrichem.cn. The biofungicide, developed by the Hunan academy of agricultural sciences, is the first plant-based fungicide to receive approval from the Chinese authorities. Chief researcher at the academy Yu Dazhao discovered the fungicidal effects of anthraquinone compounds 13 years ago. After ten years of laboratory and field tests, researchers discovered that the compounds were “extremely effective” against powdery mildew. The pesticide was awarded a patent in 2006 and a provincial science and technology prize in 2008.