小黑瓢虫的交配和产卵行为及规律观察  

Mating and Oviposition Behaviors and Rhythms of Delphastus catalinae (Horn)

作　　者：刘其全[1,2] 王竹红[1] 徐桂萍[1] 辛晓阳[1] 黄建[1] 

机构地区：[1]福建农林大学植物保护学院,福州350002 [2]福建省农业科学院植物保护研究所,福州350013

出　　处：《中国生物防治》2010年第4期391-396,共6页Chinese Journal of Biological Control

基　　金：公益性行业(农业)科研专项项目(200803032);福建省科技创新平台建设计划项目(2008N2002);福建省小发明;小创造专项项目(闽发改投资[2008]798号)

摘　　要：通过室内观察,研究了小黑瓢虫Delphastus catalinae交配、产卵的行为及规律,并探讨了交配次数对成虫繁殖力的影响。结果表明：雄虫的交配前期为5.0±0.5d,雌虫的产卵前期为5.8±0.4d;小黑瓢虫交配活动的主导者是雄虫,雄虫性成熟后可进行交配;性成熟的成虫可全天交配,交配持续时间平均为18.6min,6：00-8：00为高峰时刻;雌虫交配后可全天产卵,白天产卵量高于夜间,每雌可产卵353~413粒,产卵期63~120d;交配次数的增加可以延长产卵期,提高小黑瓢虫的产卵量,但雌虫的寿命会下降;交配多次的后代繁殖状况最佳。Mating and oviposition behaviors and rhythms of Delphastus catalinae（Horn） were observed,and the influence of mating frequency on fecundity was investigated.Results showed that mating was a male-dominated phenomenon.When sexually mature,the males initiated mating.A complete mating process took 18.6 min on average.A pre-mating period of 5.0±0.5 d for the male and a pre-ovipositing period of 5.8±0.4 d for the female were observed.Multiple mating occurred during the whole day and peaked in the early morning at 6：00-8：00.After mating,female adults laid more eggs during the day than at the night.Oviposition lasted 63120 d with 353-413 eggs laid per female.With the increase of the mating frequency,oviposition period and fecundity increased but longevity of female decreased. Multiple mating added to the reproductive performance of D.catalinae.

关 键 词：小黑瓢虫 交配 产卵 行为 繁殖力 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]