摘要
本文在室内条件下研究了浅黄恩蚜小蜂的生殖方式,观察了该寄生蜂的羽化节律、羽化行为、交配行为和产卵行为等。结果表明,雌雄蜂正常交配后在烟粉虱若虫体内产下受精卵,初寄生卵发育为雌蜂;而未经交配的雌蜂将未受精卵产于被寄生的烟粉虱若虫体内,重寄生卵发育为雄蜂。浅黄恩蚜小蜂在08:00—12:00时间段羽化数最多,占全天羽化数的58.1%;其次是12:00—16:00时间段,占全天羽化数的21.5%。黑蛹羽化前有一个明显的"蛹动"过程,羽化后的雌蜂均可立即进行交配。在试验期内,1头雄蜂可以与3头以上雌蜂交配,而雌蜂只交配1次。文中还详细描述了浅黄恩蚜小蜂产卵前后寄主定位、寄主检查和清扫梳理等行为。本试验结果将为浅黄恩蚜小蜂的大量繁殖和田间应用提供理论依据。
Reproduction behavior of Encarsia sophia （Girault ＆amp; Dodd） on Bemisia tabaci Gennadius was investigated in the laboratory, including emergence rhythm, emergence behavior, mating behavior and oviposition behavior. The results showed that mated female parasitoids laid fertilized eggs in whitefly nymphs, offspring of early laid eggs were female. Whereas, unmated females deposited eggs in parasitized whitefly nymphs, offspring were males. Most of E. sophia adults （58.1%） emerged during 08：00-12：00 h, and 21.5%emerged during 12：00-16：00 h. There was an obvious“pupa moving”behavior in black pupae before emergence. The females mated immediately after emergence. Male parasitoid could mate more than 3 times, whereas female mated only one time in their lifespan. Host location, host checking and cleaning behavior of the parasitoid were also detailed in this paper.
出处
《中国生物防治学报》
CSCD
北大核心
2014年第3期300-305,共6页
Chinese Journal of Biological Control
基金
国家"973"计划项目(2013CB127600)
公益性行业(农业)科研专项(2013003019)
现代农业产业技术体系(BLVT-13)
关键词
浅黄恩蚜小蜂
烟粉虱
生殖方式
行为
Encarsia sophia
Bemisia tabaci
reproduction mode
behavior
