几种杀虫剂对马尾松毛虫自然种群控制作用的评价
EVALUATION OF THE CONTROLLING EFFECTS OF INSECTICIDES ON THE NATURAL POPULATION OF MASSON PINE CATERPILLAR
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摘要: 应用生命表方法和干扰作用控制指数评价６种杀虫剂和白僵菌防治马尾松毛虫的作用。干扰作用的控制指不仅表达防治措施的主效应，同时也表达杀虫剂对天敌的作用而对害虫种群的副效应，从而综合评价防治措施对害虫种群动态的。试验结果表明，特异作用杀虫剂（灭幼脲和抑食肼）和微生物杀虫剂对马尾松毛虫自然种群有较好的干扰作用，其作用效果依次为：灭幼脲胶悬剂（０．１５８６）、抑食肼胶悬剂（０．２７４８）、灭幼脲粉剂（０．２Abstract: Based on life table method,the controlling effects of 6 insecticides and Batrytis(Beau-weria Vuill.)on the natural population of Masson pine caterpillar(Dendrolimuspunctatus Walker)were evaluated by Interference Index of Population Control(IIPC). IIPC reflecfs both the key effects of measurements and the side effects of insecticideson natural enemies,and can hence comprehensively evaluate the influence ofcontrolling measurements on insect population dynamics. It is stated from the exper-imental results that,specific action insecticide and Batrytis have better interferencingeffects on Masson pine caterpillar than others;and the broad spectrum insecticides arehelpful to heavy outbreak of the natural population of Masson pine caterpillarin next generation.
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