旋歧夜蛾形态和生活史观察  

Morphology and life history of Discestra trifolii(Lepidoptera:Noctuidae)

作　　者：张航[1] 杨安沛[1] 白微微[1] 高海峰[1] 李广阔[1] 王锁牢[1] ZHANG Hang;YANG An-Pei;BAI Wei-Wei;GAO Hai-Feng;LI Guang-Kuo;WANG Suo-Lao(Key Laboratory of Integrated Pest Management in China North-western Oasis Crops,Ministry of Agriculture of the People's Republic of China,Research Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China)

机构地区：[1]新疆农业科学院植物保护研究所,农业部西北荒漠绿洲作物有害生物综合治理重点实验室,乌鲁木齐830091

出　　处：《应用昆虫学报》2018年第6期1096-1104,共9页Chinese Journal of Applied Entomology

基　　金：国家现代农业产业技术体系(糖料)建设专项资金(CARS-170307);农业部西北荒漠绿洲作物有害生物综合治理重点实验室开放基金资助课题(KFJJ20170101).

摘　　要：【目的】初步研究旋歧夜蛾Discestratrifolii(Hufnagel)的形态特征、生物学特性以及生活史。【方法】通过室内观察,数据测量与统计,总结与分析了旋歧夜蛾的形态、生物学特性等问题。【结果】在室内饲养条件下,旋歧夜蛾幼虫6龄,旋歧夜蛾完成1代的生命周期为(44.27±3.10)d,卵期(4.02±0.35)d,存活率96.97%±1.20%,幼虫期(17.87±1.40)d,存活率75.76%±6.94%,蛹期(10.48±0.80)d,存活率93.86%±0.46%,成虫期(12.62±2.82)d。【结论】基本明确了旋歧夜蛾的形态和生活史,有助于制定有效的旋歧夜蛾防治措施,同时为旋歧夜蛾其它研究奠定基础。[Objectives] To investigate the morphology, biological characteristics and life cycle of Discestra trifolii(Hufnagel). [Methods] Laboratory observation. [Results] The larvae of D. trifolii had 6 instars, and the duration of an entire generation was(44.27±3.10) d under laboratory conditions. The egg stage lasted for(4.02±0.35) d, and egg fertility was about 96.97%±1.20%. The larval stage lasted for(17.87±1.40) d, and the survival rate was 75.76%±6.94%. The pupal stage lasted for(10.48±0.80) d, and the survival rate was 93.86%±0.46%. The life span of adults was(12.62±2.82) d. [Conclusion] The morphology and life history of D. trifolii will not only help to design efficient pest control methods, but also provide a theoretical basis for further study of this species.

关 键 词：旋歧夜蛾 形态 生长发育 生活史 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治]