Age-Stage, Two-Sex Life Tables of the Predatory Mite Cheyletus Malaccensis Oudemans at Different Temperatures

Age-Stage, Two-Sex Life Tables of the Predatory Mite Cheyletus Malaccensis Oudemans at Different Temperatures

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Cheyletus malaccensis Oudemans is a predatory mite inhabiting grain depots in China.The relationship between temperature and the population Wi-Fi Dongle growth rate of C.malaccensis is useful for predicting its population dynamics.

Age-stage, two-sex life tables of the predator, C.malaccensis, reared on Acarus siro were constructed under laboratory conditions at 22, 24, 28, 30, and 32 °C, 75% relative humidity, and a 0:24 h (L:D) photoperiod.Increasing temperature shortened the development time of the immature stages.

The complete generation time of C.malaccensis ranged from 11.10 d to 27.

50 d.Life table parameters showed that 28 °C was the optimum temperature for the growth and development of C.malaccensis; populations could increase rapidly at this temperature.

The highest net reproductive rate (R0 = 290.25) and highest fecundity (544.52) occurred at 28 °C.

Temperature significantly affected the intrinsic rate of increase (r), fecundity, and finite rate of increase (λ).The values of age-specific fecundity (high to low) were 28 °C > 24 °C > 30 °C > Combination Vacuum Floor Tool 32 °C > 22 °C, while the values of age-stage-specific fecundity had the same trend.