八角是我国特有的珍贵经济树种，主要分布在我国南方的广西、云南、广东等省区。广西是主要产区，有林面积在２２万多hm２以上，其主要产品八角、茴油，是广西大宗出口的重要土特产之一。近年来，由于价格节节攀升，群众的造林积极性空前高涨，八角种植面积逐年增加，病虫害的 Star anise is a peculiar economic tree species unique to our country, mainly distributed in Guangxi, Yunnan, Guangdong and other provinces and autonomous regions in southern China. Guangxi is the main producing area, with more than 220,000 hm2 of forest area. Its main products, including star anise and fennel oil, are one of the important native products for the bulk export in Guangxi. In recent years, due to rising prices, the enthusiasm of the masses for afforestation has been on the rise. The acreage has been increasing year by year. Pests and diseases