Life table of Amblyseius swirskii fed on three substitute prey species
Author of the article:ZHENG Yuan;SONG Zi-Wei;ZHANG Bao-Xin;XIE Yong-Hui;WANG Zhi-Jiang;OUYANG Jin; LI Dun-Song
Author's Workplace:Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; The Key Laboratory of Integrated Pest Management on Crops in South China, Ministry of Agriculture, P. R. China, Guangzhou 510640, China; Kunming Branch, Yunnan Tobacco Company, Kunming 650021, China)
Key Words:Amblyseius swirskii (Athias-Henriot); substitute prey; life table; developmental period; intrinsic rate of increase
Abstract:[Objectives] To evaluate the potential of common flour mites and grain mites, which are easy to obtain and mass rear, as substitute prey for mass rearing Amblyseius swirskii. [Methods] Life table parameters of A. swirskii reared on three substitute prey species, Carpoglyphus lactis, Tyrophagus putrescentiae and Aleuroglyphus ovatus were measured under lab conditions of (25±1)℃, RH 65%±10 % and L︰D=16︰8. [Results] The developmental period of A. swirskii reared on the three kinds of substitute prey was 6.43, 9.20, 6.30 d, respectively, and average female fecundity was 31.70, 8.39 and 11.50 eggs, respectively. The intrinsic rate of increase (rm) was 0.191 8, 0.055 0, 0.116 2, respectively, and the finite rate (λ) of increase was 1.211 4, 1.056 5, 1.123 2, respectively. A. swirskii laid more eggs and had lived longer when fed on C. lactis than on the two other substitute prey species tested. [Conclusion] C. lactis was the best of the three substitute prey species tested for rearing A. swirskii.