摘要
为研究棉铃虫成虫寄主偏好性和幼虫取食后生存表现之间的关系,明确两者在决定寄主过程中的作用,我们测定了交配后的棉铃虫雌成虫对16种植物(棉花、玉米、大豆、花生、番茄、辣椒、茄子、烟草、黄瓜、胡萝卜、西芹、杨树、月季、菠菜、包菜、大葱)的产卵偏好性和幼虫取食这些植物嫩叶后的存活和发育情况。棉铃虫雌成虫选择在烟草、茄子、棉花、胡萝卜、番茄、辣椒、玉米、西芹、大豆和花生等10种植物上产卵,但只有取食西芹、烟草、番茄、大豆、棉花和胡萝卜等6种植物叶片的初孵幼虫能够完成幼虫阶段的生长发育、化蛹并羽化,且取食植物嫩叶的幼虫的存活率、发育历期、蛹期和蛹重均差于取食人工饲料的幼虫。以上结果表明,棉铃虫雌成虫产卵寄主与其幼虫取食寄主之间存在并非一一对应的关系,幼虫的生存表现限定了棉铃虫的寄主范围。
To investigate the relationships between adult host preference and larval performance in Helicoverpa armigera and compare their roles in determining host plant range, we measured the oviposition preference of mated female adults of H. armigera to 16 plants(cotton, corn, soybean, peanut, tomato, pepper, eggplant, tobacco, cucumber, carrot, celery, poplar, Chinese rose, spinach, cabbage, and green onion) and the survival and development of H. armigera larvae fed with young leaves of the 16 plants. The female adults of H. armigera significantly selected tobacco, eggplant, cotton, carrot, tomato, pepper, corn, celery, soybean and peanut for laying eggs, whereas only neonates of H. armigera fed with young leaves of celery, tobacco, tomato, soybean, cotton, or carrot could complete larval development, pupate and emerge into adults. Moreover, the larvae fed with young leaves were inferior to those fed with artificial diets in survivorship, duration of larval stage, duration of pupal stage, and pupal weight. These results indicate an inclusive, rather than one-to-one relationship between adult oviposition and larval feeding, and larval performance ultimately determines the host range of H. armigera.
作者
张屾
吴明峰
谷少华
李显春
ZHANG Shen;WU Mingfeng;GU Shaohua;LI Xianchun(State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;Department of Entomology and BIO5 Institute,University of Arizona,Tucson AZ 85721,USA)
出处
《植物保护》
CAS
CSCD
北大核心
2019年第2期108-113,共6页
Plant Protection
基金
国家自然科学基金(31772164
31401737
31171874)
北京青年拔尖人才项目(2015000021223ZK29)
