梨剑纹夜蛾生物学的初步研究

梨剑纹夜蛾Acromicta r(?)micis Linnaeus属鳞翅目夜蛾科,是一种为害果树、林木和蔬菜的食叶性害虫。到目前为止,国内对该虫研究报道甚少,我们于1989～1990年对该虫在山植树上的生物学特性进行了较系统的实验室观察和田间调查。该虫在吉林省一年3代,以老熟幼虫入土结茧化蛹越冬。成虫4月下旬在叶面上产卵。卵孵化期9～10d,幼虫7龄,历期30～35d,蛹期13～20d,成虫寿命7～9d。本文报道了梨剑纹夜蛾的形态及生物学特性。

Preliminary Researches On Acronycta rumicis Linnaeus

Aronycta rumicis Linnaeus (Noctuidae, Lepidoptera) is a kind of phyllophagous pest on fruit trees, forests and vegetables. Up to date, very few studies on this insect have been reported in China. Its biological characters on hawthorn trees was systemtically observed and studied in both laboratory and field. Three generation occur each year in Jilin province. The eldest larvae make cocoons and pupae in the soil for passing through Winter. The adults lay their egges on the surface of larvaes in the last ten days of April. Egg stage is 9 - 10 days, larvae stage 30- 35 days and the abult longevity 7 - 9 days. The morphology, biological character and control methods of Acronycta rumicis Linnaeus are reported.