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松毛虫赤眼蜂寄主偏爱可塑性的研究
引用本文:邱鸿贵,邱中良.松毛虫赤眼蜂寄主偏爱可塑性的研究[J].昆虫天敌,1999,21(2):49-54.
作者姓名:邱鸿贵  邱中良
作者单位:中国科学院上海昆虫研究所!上海,200025,中国科学院上海昆虫研究所!上海,200025,中国科学院上海昆虫研究所!上海,200025,中国科学院上海昆虫研究所!上海,200025
摘    要:在选择试验中,原寄生松毛虫卵的松毛虫赤眼蜂显示对柞蚕卵的偏爱,而来自玉米螟卵的松毛虫赤眼蜂则对玉主螟卵嗜好。当松毛虫卵的松毛虫赤眼蜂转用玉米螟卵培养后,逐代玉米螟卵寄生率、子代蜂数等,随着培养代数的增加而明显提高。试验表明,松毛虫赤眼蜂接受寄主行为是可塑的。可明显改变雌蜂显示的寄主偏爱性,需要用特定的寄主卵连续培养34代。

关 键 词:松毛虫赤眼蜂  寄主偏爱可塑性  寄主

HOST-PREFERENCE PLASTICITY STUDIES WITH TRICHOGRAMMA DENDROLIMI WESTWOOD
Qiu Honggui, Qiu Zhongliang, Shen Bojun, Fu Wenjun.HOST-PREFERENCE PLASTICITY STUDIES WITH TRICHOGRAMMA DENDROLIMI WESTWOOD[J].Natural Enemies of Insects,1999,21(2):49-54.
Authors:Qiu Honggui  Qiu Zhongliang  Shen Bojun  Fu Wenjun
Abstract:During choice experiments, Trichogramma dendrolimi from Dendrolimus punctatus eggsshowed a preference for Antherae pernyi eggs . Where as T. dendrolimi from Ostrinia furnacaliseggs showed a preference for O. furnacalis eggs. When T. dendrolimi from D. punctatus wasswitched to O .furnacalis eggs, after several generations of rearing, there is a significant increase inthe rate of parasitization and the number of offspring.The experiments showed that host-acceptance behavior of T. dendrolimi is plastic. To signifi-cantly change the host preference of female wasps, we need to rear the wasp for 3 - 4 generations onspecific host eggs.
Keywords:Trichogramma dendrolimi Host-preference plasticity
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