前裂长管茧蜂对桔小实蝇的寄生效能研究  

Parasitic Effect of Diachasmimorpha longicaudata on Bactrocera dorsalis

作　　者：邵屯[1,2] 刘春燕[1] 陈科伟[1] 曾玲[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广东广州510642 [2]广东清远出入境检验检疫局,广东清远511515

出　　处：《华南农业大学学报》2009年第2期33-36,共4页Journal of South China Agricultural University

基　　金：国家“973”项目(2002CB111400);农业部“农作物病虫害疫情监测与防治”项目(农财发[2008]60号);广东省科技计划项目(2005A20401001);科技部基础性工作专项(2006FY111000-1)

摘　　要：通过组建前裂长管茧蜂的实验种群生殖力生命表,结果表明,前裂长管茧蜂羽化后有1～3 d不等的产卵前期,生殖活动的高峰期出现在羽化后的4～10 d,单日寄生桔小实蝇幼虫量不超过20头,平均每头雌蜂约能繁育125个后代.种群中以雌性个体为主,雌雄比例接近2∶1.世代净增殖力和内禀增长率分别为44.44和0.158 1.田间放蜂试验结果表明,当按1∶1、1∶5及1∶10的蜂虫比释放时,15 d后的寄生率分别为36.01%、12.50%和5.18%,但随后寄生率急剧下降.The reproduction biology of Diachasmimorpha longicaudata was studied by construction of experimental population life table of D. longicaudata reared in oriental fruit fly, Bactrocera dorsalis. D. longicaudata had a pro-oviposit period for 1 to 3 days, depending on adult＇s food and copulation. The peak of reproduction activity appeared in 4 to 10 days after adult emergence, and one female could breed about 125 offspring, however, the number of daily parasitized larvae of D. longicaudata was no more than twenty. The net reproduction rate （R0） and intrinsic increase rate （rm） were 44.44 and 0.158 1, respectively. The sex ratio of female to male was close to 2：1. It was showed that D. longicaudata was released in the ratio （ parasitoid： fly） of 1：1, 1：5 and 1：10 in carambola orchard resulted in parasitisms of 36.01%, 12.50% and 5.18%, respectively, in 15 days after releasing.

关 键 词：前裂长管茧蜂 桔小实蝇 寄生效能 生殖力生命表 

分 类 号：Q968.1[生物学—昆虫学]