【摘要】 本文首次报道了苜蓿多节天牛为害返魂草,并调查了苜蓿多节天牛各虫期形态及在吉林地区的生活史,对蛹和卵的描述亦属首次。该虫属于完全变态发育昆虫,生长周期包含卵期、幼虫期、蛹期和成虫期4个阶段。在吉林地区。苜蓿多节天牛1年1代。以幼虫在返魂草根茎内越冬,翌年春化蛹,羽化后成虫在茎秆上产卵,幼虫孵化后蛀食茎髓,致返魂草植株枯萎。苜蓿多节天牛对温度比较敏感,具有喜高温的习性,在防治上可参考菊天牛。更多还原

【Abstract】 In this study, we investigated the morphology and life history of Agapanthia amurensis Kraatz in Jilin and reported its damage to Senecio cannabifolius Less. var. integerifolius(Koidz) Kitag for the first time. We also presented the first description of its pupa and egg. This insect was holometabolic, and its life cycle included four stages: egg stage, larva stage, pupa stage, and adult stage. In Jilin, A. amurensis occurred one generation per year and overwintered in the rootstock of S. cannabifolius var. integerifolius as larvae. The pupation and eclosion occurred in spring, and then the adult laid eggs on the stem. Then the eggs hatched into larvae, which tunnel through the pith of the S. cannabifolius Less. var.integerifolius(Koidz) Kitag and made the plant wither. The insect was sensitive to temperature and preferred high temperature. The practice of Phytoecia rufiventris Gautier control could be used for reference to manage A. amurensis.更多还原