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Chinese Journal of Applied Ecology ›› 2020, Vol. 31 ›› Issue (10): 3554-3558.doi: 10.13287/j.1001-9332.202010.030

• Original Articles • Previous Articles     Next Articles

Effects of four aphid species on development and reproduction of Harmonia axyridis

SUN Li-juan, YU Hai-xia, ZHENG Chang-ying*   

  1. Shandong Province Key Laboratory for Integrated Management of Plant Disease & Insect Pest, Qingdao Agricultural University, Qingdao 266109, Shandong, China
  • Received:2020-03-14 Accepted:2020-08-10 Online:2020-10-15 Published:2021-04-15
  • Contact: * E-mail: zhengcy67@qau.edu.cn
  • Supported by:
    Pilot Project of National Key Research and Development Program (2017YFD0201000) and Shandong Modern Agricultural Technology and Industry System (SDAIT-05-13).

Abstract: To examine the suitability of Myzus persicae, Lipaphis erysimi, Semiaphis heraclei and Aphis gossypii to propagation of Harmonia axyridis population, we studied the development and reproduction of this ladybird by constructing two-sex life table in the laboratory with those four aphid species as diet. The results showed that the immature duration of H. axyridis decreased in an order of L. erysimi (18.18 d), A. gossypii (17.48 d), S. heraclei (16.23 d), and M. persicae (15.77 d). The survival rates of preadult period were S. heraclei (88.3%), M. persicae (86.7%), L. ery-simi (55.0%), and A. gossypii (55.0%). The fecundity of those species were S. heraclei (1750.5), M. persicae (1441.5), A. gossypii (1006.3), and L. erysimi (965.2). The longevity of adult ladybird were S. heraclei (78.8 d), M. persicae (63.1 d), A. gossypii (54.3 d), and L. erysimi (48.4 d). The intrinsic rate of increase (rm) of H. axyridis population decreased in an order of M. persicae (0.19), S. heraclei (0.18), L. erysimi (0.14), and A. gossypii (0.14). The net reproduction rates (R0) were S. heraclei (895.83), M. persicae (600.62), L. erysimi (273.47), and A. gossypii (268.33). Among those four aphid species, S. heraclei and M. persicae were more suitable for the propagation of H. axyridis population.

Key words: aphid, Harmonia axyridis, developmental duration, survival, reproduction