Sublethal effect of chlorpyrifos on the dynamics of experimental Tetranychus cinnabarinus population

Abstract

Abstract: By using Jackknife technique and Wilcoxon (Gehan) statistic method, the LC₃₅sublethal effect of chlorpyrifos on the population dynamics of Tetranychus cinnabarinus was studied in laboratory. The results showed that under the conditions of 30 ℃±1 ℃, （70±15）% RH and a photoperiod of 16L∶8D, there were no significant differences in the longevity of female adult, F1 hatchability, and sex ratio of T. cinnabarinus between chlorpyrifos treatment and the control, but the total oviposition (42.37±2.270) and the intrinsic rate of increase (0.3279±0.0033) in chlorpyrifos treatment were significantly lower than those (52.50±2.433 and 0.3717 ±0.0043, respectively) in the control.

Key words: Natural zeolite, Soil nutrient, Bioavailability, Soil chemical property

TAO Shiqiang¹; WU Fuan² . Sublethal effect of chlorpyrifos on the dynamics of experimental Tetranychus cinnabarinus population[J]. Chinese Journal of Applied Ecology.

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Sublethal effect of chlorpyrifos on the dynamics of experimental Tetranychus cinnabarinus population

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