甘蓝夜蛾研究进展

为给甜菜田甘蓝夜蛾的防治提供参考依据,笔者综述了甘蓝夜蛾生物学特性、生理生化特性和防治策略三个方面的研究进展。在生物学特性方面总结了虫态和发育历期、趋光性、滞育、人工饲养饲料配方、取食规律、迁移规律、种群消长规律、卵空间分布型和天敌种类9部分内容。在生理生化特性方面归纳了热休克、性信息素、抗药性基因P450、几丁质酶基因、消化酶5部分内容。在防治策略方面,简述了化学防治和生物防治施用的药剂种类、剂量、时期,提出了甜菜田甘蓝夜蛾的治理应遵循“以种群发生动态监测和抗药性监测为指导,以化学农药减量增效为核心,化学防治、生物防治并行”的治理策略。

The Research Progress of Mamestra Brassicae L.

To provide reference for the control of Mamestra brassicae Linnaeus, this study summarized the research progress of biological characteristics, physiological and biochemical characteristics and control strategies of Mamestra brassicae. In terms of biological characteristics, insect state and development duration, phototaxis, diapause, artificial feeding formula, feeding law, migration law, population growth and decline law, spatial distribution pattern of eggs and species of natural enemies were reviewed. In terms of physiological and biochemical characteristics, five parts of heat shock, sex pheromone, drug resistance gene P450, chitinase gene and digestive enzyme were summarized. In terms of control strategies, the types, dosages and periods of chemical and biological control agents were briefly described. Based on the research, we propose the control strategy of Mamestra brassicae Linnaeus in beet field, which emphasizes the guidance of population dynamics monitoring and drug resistance monitoring, takes chemical pesticide reduction and synergy as the core, and combines chemical control with biological control.