Biology and predation of the Japanese strain of Neoseiulus californicus (McGregor) (Acari: Phytoseiidae)
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TLDR
The life history characteristics and predation of the Japanese Neoseiulus californicus (McGregor) strain on the two-spotted spider mite, Tetranychus urticae Koch, were studied in the laboratory under 60–70% RH and 16L: 8D conditions to assess the effectiveness of theJapanese N. califORNicus strain as an important biological control agent against T. uricae.Abstract:
The life history characteristics and predation of the Japanese Neoseiulus californicus (McGregor) strain on the two-spotted spider mite, Tetranychus urticae Koch, were studied in the laboratory under 60‐70% RH and 16L: 8D conditions. Developmental time from egg to adult emergence decreased when temperature increased. Total development period of immature stages was longest at 15°C and shortest at 35°C for both male and female. Sex ratio favored females and temperature did not exert a critical effect on sex determination. The total degree-days required from egg to adult female were 71.43 degree-days with thermal constant of 10.64 °C. At 25°C, female laid a total of 34.73 eggs during 17.91 days of oviposition period. The net reproductive rate (R o ) was highest at 25°C (22.92 females/female) and lowest at 30°C (16.74 females/female). The mean generation time (T) decreased from 20.61 to 16.79 days with increasing temperature up to 30 °C. The intrinsic rate of natural increase (r m ) ranged from 0.162 to 0.285, and was maximal at 25 °C. A gravid N. californicus female consumed more eggs, larvae and nymphs than adult male or female of T. urticae. As T. urticae density increased, prey consumption likewise increased. However, increasing the number of adult male or female preys did not increase the number of eggs laid by a female predator. The results were used to assess the effectiveness of the Japanese N. californicus strain as an important biological control agent against T. urticae.read more
Citations
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Linking pollen quality and performance of Neoseiulus californicus (Acari: Phytoseiidae) in two-spotted spider mite management programmes.
TL;DR: Comparison of N. californicus life table parameters on different diets revealed that the almond pollen was a more suitable diet than the others, and these findings will be useful in developing appropriate strategies for conservation of the spider mite predator.
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Demographic response to constant temperatures in Neoseiulus barkeri (Phytoseiidae) fed on Tetranychus urticae (Tetranychidae)
TL;DR: The results of this study indicated that N. barkeri has inherent potential for the control of two-spotted spider mite at higher temperatures especially at temperatures between 30–35°C.
Journal ArticleDOI
Functional and Numerical Responses of the predatory mite, Neoseiulus longispinosus, to the red spider mite, Oligonychus coffeae, infesting tea
TL;DR: Functional and numerical responses of the predatory mite Neoseiulus longispinosus (Evans) to the red spider mite, Oligonychus coffeae Nietner (Acari: Tetranychidae), infesting tea were determined in a laboratory on leaf discs.
Journal ArticleDOI
Effect of temperature on the life-history traits of Neoseiulus californicus (Acari: Phytoseiidae) fed on Panonychus ulmi
TL;DR: The development and adult life-history traits obtained for N. californicus fed on P. ulmi indicated significant potential for biological control and mean developmental time and adult longevity were inversely related to temperature from 15 to 30°C.
Journal ArticleDOI
Prey consumption and functional response of Neoseiulus californicus and Neoseiulus longispinosus (Acari: Phytoseiidae) on Tetranychus urticae and Tetranychus kanzawai (Acari: Tetranychidae)
TL;DR: When different densities of prey were offered to the predators, more prey was consumed at higher prey densities, and interaction between prey stage and prey density was significant for N. californicus, but not significant forN.
References
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James A. McMurtry,B. A. Croft +1 more
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Temperature requirements of some aphids and their parasites
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