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Effects of three mealybug species on the development, survivorship and reproduction of the predatory lady beetle Cryptolaemus montrouzieri Mulsant

文献类型： 外文期刊

作者： Qin, Zhen-Qiang 2 ; Qiu, Bao-Li 1 ; Wu, Jian-Hui 1 ; Cuthbertson, Andrew G. S. 3 ; Ren, Shun-Xiang 1 ;

作者机构： 1.South China Agr Univ, Engn Res Ctr Biol Control, Dept Entomol, Minist Educ, Guangzhou, Guangdong, Peoples R China

2.Guangxi Acad Agr Sci, Sugarcane Res Inst, Nanning, Peoples R China

3.Food & Environm Res Agcy, York, N Yorkshire, England

关键词： biological control;C. montrouzieri;life table parameters;mealybug

期刊名称：BIOCONTROL SCIENCE AND TECHNOLOGY （ 影响因子：1.665； 五年影响因子：1.616 ）

ISSN： 0958-3157

年卷期： 2014 年 24 卷 8 期

页码：

收录情况： SCI

摘要： The lady beetle Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) is an important predator of mealybugs. The development, survivorship, longevity and reproduction of C. montrouzieri feeding on three different mealybug species [Dysmicoccus neobrevipes Beardsley, Ferrisia virgata Cockerell and Planococcus minor (Maskell)] were investigated in the laboratory at 26 +/- 1 degrees C, 75--90% RH and 14: 10 (L: D) h photoperiod. Results indicated that, when feeding on different mealybugs, no significant differences were observed between developmental periods and survivorship of C. montrouzieri (from egg to adult), but differences were recorded between the sex ratios, preovipositional periods, adult longevities and reproduction of the differently treated lady beetle populations. The highest sex ratio (0.56), the longest preovipositional period (6.6 days) and adult longevity (84.8 days for females and 93.9 days for males), and the maximum fecundity (659.0 eggs/female) of C. montrouzieri were recorded when feeding on F. virgata. Moreover, C. montrouzieri had a high net reproductive rate (313.66), intrinsic rate of increase (0.0816) and finite rate of increase (1.085) when feeding on F. virgata. Results indicated that the population growth of C. montrouzieri may increase faster when feeding on F. virgata than feeding on either of the other two mealybugs.

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