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引言 舞毒蛾(Lymantria dispar L.)是世界性大害虫。分布广,其幼虫的食性很杂,可食300种植物(Bacob B.M.1979)。其中包括栎、杨、柳、落叶松、油杉、油松、西伯利亚云杉(Picea obovata ledeb)及桦等多种针阔叶树种。据我们初步调查该虫在东北地区危害30多种树木,是林业、蚕业、果树等主要害虫之一。长期以来使用化学药剂防治舞毒蛾,既污染环境,又杀伤天敌,并增强害虫的抗药性。近年来,世界各国都很重视用飞机喷撤NPV制剂来防治舞毒蛾,但防治效果差异很大(Magnoler
Introduction Lymantria dispar L. is a worldwide pest. Widely distributed, larvae are very complex diet, edible 300 kinds of plants (Bacob B.M. Among them are oak, poplar, willow, larch, oleander, Pinus tabulaeformis, Picea obovata ledeb, and birch. According to our preliminary investigation, the insect harms more than 30 kinds of trees in the northeast region and is one of the major pests such as forestry, sericulture and fruit trees. Long-term use of chemical agents to control Gypsy moth, both pollute the environment, but also kill natural enemies, and enhance pest resistance. In recent years, all countries in the world attach great importance to the prevention and control of Gypsy moths by spraying NPVs on aircraft, but the control effect is very different (Magnoler