应用杆状病毒防治茶树害虫,国内报道不少,但病毒感染幼虫后的潜伏期一般都较长,往往害虫死亡,叶片已吃光。为此,我们筛选了一株高效油桐尺蠖核型多角体病毒。此系梁东瑞从贵州采集罹病油桐尺蠖虫尸,经室内分离纯化,重复感染试验,其潜伏期较短,感染力较强。电镜观察:多角体病毒为3-6角形,大小2-3微米,初步鉴定为核型多角体病毒(BsNPV)。田间防治油桐尺蠖取得了很好的效果。 Application of baculovirus control of tea tree pests, a lot of domestic reports, but the larvae virus infection lag period generally longer, often the pest death, the leaves have eaten. To this end, we screened a high-efficient Tung Karyotype nuclear polyhedrosis virus. This is the Department of Dong-Rui collected from Guizhou Guizhou Province Tung wood worm body necrosis, the indoor separation and purification, repeated infection test, the incubation period is shorter, more contagious. Electron microscopy: polyhedrosis virus 3-6 angular size of 2-3 microns, initially identified as nuclear polyhedrosis virus (BsNPV). Prevention and treatment of tung in the field made very good results.