Demography and Mass Rearing of Amblyseius swirskii (Acari: Phytoseiidae) Fed on Two Species of Stored-Product Mites and Their Mixture

Amblyseius swirskii (Athias-Henriot) is one of the most important biological control agents and has been used in many countries. In this study, the suitability of Carpoglyphus lactis L. (Acari: Carpoglyphidae), Tyrophagus putrescentiae (Schrank), and their mixture for rearing A. swirskii was evaluat...

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Bibliographic Details
Published in:Journal of economic entomology 2020-12, Vol.113 (6), p.2604-2612
Main Authors: Asgari, Faeze, Sarraf Moayeri, Hamid Reza, Kavousi, Aurang, Enkegaard, Annie, Chi, Hsin
Format: Article
Language:English
Subjects:
Acari
Acaridae
Amblyseius swirskii
Animals
BIOLOGICAL AND MICROBIAL CONTROL
Biological control
Demography
Diet
Eggs
factitious prey
Fecundity
Female
Females
Male
Mass rearing
Mites
Offspring
Pest Control, Biological
Population number
Predatory Behavior
Prey
two-sex life table
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Summary:Amblyseius swirskii (Athias-Henriot) is one of the most important biological control agents and has been used in many countries. In this study, the suitability of Carpoglyphus lactis L. (Acari: Carpoglyphidae), Tyrophagus putrescentiae (Schrank), and their mixture for rearing A. swirskii was evaluated by using the two-sex life table. When reared on C. lactis, the durations of egg, deutonymph, total preadult, total preoviposition period, and adult male longevity of A. swirskii (1.95, 1.17, 6.13, 6.30, and 10.09 d, respectively) were significantly shorter than those reared on the mixed prey (2.05, 1.45, 6.55, 6.64, and 15.56 d, respectively). When reared on the mixed prey, however, the fecundity (110.21 eggs/female) of A. swirskii was significantly higher in comparison with those solely reared on C. lactis (82.17 eggs/female) or on T. putrescentiae (98.23 eggs/female). When reared on the mixed diet, the intrinsic rate of increase (r = 0.3792 d–1), finite rate of population increase (λ = 1.4611 d–1), and net reproductive rate (R0 = 79.69 offspring) of A. swirskii were significantly higher than those on single-species diets. For a daily production of 10,000 eggs of A. swirskii, a smaller population size (2,626 individuals) of A. swirskii is needed when reared on the mixed diet, in contrast to the 4,332 individuals on C. lactis and 3,778 individuals on T. putrescentiae. The population projection and mass-rearing analysis based on life table showed that the mixed diet was the most suitable and economical diet for the mass-rearing of A. swirskii.
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/toaa187