Two-sex life tables of Psylla chinensis (Hemiptera: Psyllidae) at different temperatures
Author of the article:ZHANG Bo-Chen, ZHANG Rui, XU Shuang-Ye, ZHU Xing-Qiu, LIAN Shao-Bo, HAO Chi, YU Qin
Author's Workplace:College of Plant Protection, Shanxi Agricultural University
Key Words:Psylla chinensis; temperature; age-stage two-sex life table; growth and development; population parameter
Abstract:
Abstract [Aim] To determine the influence of temperature on the growth, development, and fecundity of Psylla chinensis. [Methods] In a controlled laboratory environment, the developmental period, oviposition rate, and survival rate of P. chinensis were measured at 16, 20, 24, 28, 32 and 36 ℃. An age-stage two-sex life table was constructed and used to determine the survival rate, fecundity, life expectancy, reproduction value, and population parameters of P. chinensis. [Results] Between 16-24 ℃, the growth rate of P. chinensis increased, whereas the developmental period decreased with increasing temperature. In contrast, temperatures between 24-32 ℃ had no significant effect on the developmental period. At 36 ℃, the development of P. chinensis was inhibited. The highest number of eggs were produced at 24 ℃ with 281.50 eggs per female. Between 16-24 ℃, the age-stage survival rate, population age-stage specific net reproductive rate, and the reproduction value increased with increasing temperature. However, they decreased as temperatures increase between 24-32 ℃. At 24 ℃, the intrinsic rate, net reproduction rate, and finite rate peaked, while the mean generation time reached a minimum value at 28 ℃. [Conclusion] Based on the findings of this study, the optimal temperature range for the growth and development of P. chinensis is 24-28 ℃.