西藏林芝易贡茶园朱颈褐锦斑蛾(鳞翅目:斑蛾科)生物学习性和发生规律初探

Study on the Biological and Ocuurrence Regularity of Soritia leptalina (Lepidoptera:Zygaenidae) in Yigong,Tibet

在对易贡地区茶树病虫害发生种类及为害程度调查中发现朱颈褐锦斑蛾(Soritia leptalina)(鳞翅目:斑蛾科)是当地茶树上主要害虫。因此,通过田间观察结合室内饲养的方式,对其生物学特性和发生规律进行了探索研究,以期为当地茶叶安全生产提供依据。结果显示,朱颈褐锦斑蛾为单食性,在易贡茶园1年发生1代,10月以3龄幼虫越冬,翌年3月开始为害;成虫昼性,飞行能力不强;卵聚产。田间有厉蝽和白僵菌等天敌可作为防治朱颈褐锦斑蛾的有效手段。

Soritia leptalina(Lepidoptera:Zygaenidae)was found to be the main pest on the tea tree in the investigation of the species and the degree of damage of tea tree pests and diseases.Therefore,through field observation combined with indoor feeding,the biological characteristics and occurrence regularities were explored in order to provide the basis for local tea production safety.The results showed that Soritia leptalina were monophagous,which occurred in Yigong tea garden 1 generation in 1 year.In October,the larvae overwintered in 3 instars,and began to hann in March the next year.The adult is diurnal,the flight ability is not strong;Egg production gather.In the field,the natural enemies,such as Eocanthecona and Beauveria,can be used as an effective means to control it.