论文部分内容阅读
杨毒蛾和舞毒蛾是我省林业方面主要害虫,从雁北至晋南均广泛分布。特别是杨毒蛾,近年来为害严重,每年成灾面积达百万亩。这两种害虫的幼虫均能受到病毒的感染,它们所感染的病毒在自然情况下,常引起流行病,是仰制种群数量的重要因素。经染色鉴别和电镜观察,这两种害虫的幼虫所感染的均是核多角体病毒。杨毒蛾核多角体病毒包涵体为多角形,大小约为0.94～2.29微米,平均1.83微米,病毒粒子杆状,大小约为37×256毫微米,粒子2～7根成束存在于病毒束内。舞春蛾核对角体病毒包涵体亦为多角形,大小约为0.8～3.2微米,病毒粒子亦呈杆状,大小约为30×290毫微米,粒子1—12根成束存在于病毒束内。
Yang poison moths and gypsy moths are the main pests in forestry in our province and are widely distributed from Yanbei to Jinnan. In particular, the poisonous moth, serious damage in recent years, the annual disaster area of one million mu. The larvae of both pests are both infected with the virus, and the viruses they infect often cause epidemics in nature, which is an important factor in the population of supine. Identification by staining and electron microscopy, the larvae of these two pests are infected with nuclear polyhedrosis virus. The nucleopolyhedrovirus nucleopolyhedrovirus is polygonal in shape with a size of about 0.94-2.29 micrometers and an average of 1.83 micrometer. The virus particles are rod-shaped and have a size of about 37 × 256 nm. The particles 2 to 7 are bundles present in the virus bundle . The nucleosomes of the polluting nucleosomes are also polygonal with a size of about 0.8 to 3.2 microns. The virus particles also have a rod shape with a size of about 30 × 290 nm and particles 1-12 bundles present in the virus bundle .