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油桐民蠖(Buzura suppressaria Guenee)又名大尺蠖,是九江地区茶树主要害虫之一。近年来在部分茶园发生和危害日趋严重。根据本所1979年茶园调查,发生面积1,200多亩,占茶园总面积63％;受害面积500亩,被害株率达30％;茶叶产量损失10％左右。由于长期、大量、反复使用单一性化学农药,导致油桐尺蠖抗药性增强,而且发生面积越来越大,1980年我们从中国科学院武汉病毒研究所引进油桐尺蠖核型多角体病毒(BsNPV)采用室内人工感染法制得大量病毒粗提物,用于大田治虫。经过几年大面积喷施,到1984年就自然控制了油桐尺蠖对茶树的危害,从而节省了防治费用,取得了良好的经济效益。
Buzura suppressaria Guenee (Buzura suppressaria Guenee), also known as a large scale, is one of the major pests in the tea tree in Jiujiang. In recent years, some tea plantations have become harder and harder. According to the investigation of the tea plantation in 1979, an area of 1,200 mu occurred, accounting for 63% of the total area of the tea plantation. The affected area was 500 mu and the victim plant rate was 30%. The yield loss of tea was about 10%. As a result of long-term, large-scale, repeated use of chemical pesticides alone, resulting in enhanced Tung Taktus resistance, and the occurrence of more and more area, in 1980 we from the Chinese Academy of Sciences, Wuhan Institute of Virology introduced Tung Karyotype nuclear polyhedrosis virus (BsNPV) A large number of indoor virus infection using artificial extract crude extract for the field of pest control. After a few years of large-scale spraying, by 1984, it naturally controlled the tarnishing of tea tree damage, thus saving the cost of prevention and achieved good economic benefits.