【摘要】 八角尺蠖Dilophodes elegans sinicaProut是八角树的一种灾害性食叶害虫。通过室内饲养和野外观察,对八角尺蠖的形态特征、生物学特性进行了初步研究。结果表明,八角尺蠖在广西南宁地区1 a发生5代,以幼虫或蛹在叶片、枯枝落叶层或浅土表层越冬,世代重叠。在一定温度范围内,随着温度的升高发育历期明显缩短。幼虫取食量随着虫龄与温度的增加而增加,但是,温度超过30℃取食量会减少。更多还原

【Abstract】 Dilophodes elegans sinica Prout was a disastrous defoliator in Illicium verum.The morphological and biological characteristics of Dilophodes elegans sinica were studied in lab and field.The results showed that it had five generations a year in Nanning and overwintered as larvae or pupae in the leaves,litter or epipedon.The generations overlapped.Within the range of certain temperature,the development duration became shorter with the increase of temperature.larvalingestion increased with the age and temperature,but reduced over 30 ℃.更多还原