寄主植物对烟粉虱捕食性天敌——小黑瓢虫发育、存活和繁殖力的影响  

Effects of host plants on development,survival and reproduction of Delphastus catalinae (Horn),a predator of Bemisia tabaci(Gennadius)

作　　者：罗宏伟[1] 王竹红[2] 王联德[2] 黄建[2] 

机构地区：[1]海南省三亚市农业技术推广服务中心,海南三亚572000 [2]福建农林大学生物农药与化学生物学教育部重点实验室,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2010年第3期231-235,共5页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：公益性行业(农业)科研专项(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[闽发改投资(2008)798号]

摘　　要：分别提供6种寄主植物上的烟粉虱[Bemisia tabaci(Gennadius)]供小黑瓢虫[Delphastus catalinae(Horn)]捕食.结果表明:寄主植物显著影响小黑瓢虫的发育、存活和繁殖.捕食花椰菜上粉虱的小黑瓢虫的发育速度、存活率和繁殖力都占有明显优势,瓢虫种群增长的大小表现为花椰菜(rm=0.0771)>胜红蓟(rm=0.0722)>豇豆(rm=0.0714)>一品红(rm=0.0677)>甘薯(rm=0.0640)>烟草(rm=0.0540).由此可见,人工大量繁殖小黑瓢虫可采用的寄主植物有花椰菜、胜红蓟、豇豆和一品红,其中花椰菜为首选.Bemisia tabaci（Gennadius） on six host plants were respectively provided to Delphastus catalinae（Horn）.The results showed that the host plants affected the development,survival and reproduction of D.catalinae significantly.After preying the whitefly on cauliflower,the development rate,survival rate and oviposition of D.catalinae showed obvious superiority.The sequence of the innate capacity of increase（rm） of D.catalinae on six host plants was cauliflower（0.0771）tropic ageratum（0.0722）cowpea（0.0714）poinsettia（0.0677）sweet potato（0.0640）tobacco（0.0540）.From the view of mass rearing of D.catalinae,cauliflower is the first choice for the host plant,followed by poinsettia,cowpea and tropic ageratum.

关 键 词：寄主植物 小黑瓢虫 烟粉虱 生长发育 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]