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Chinese Journal of Biological Control ›› 2022, Vol. 38 ›› Issue (6): 1427-1434.DOI: 10.16409/j.cnki.2095-039x.2022.01.016

• RESEARCH REPORTS • Previous Articles    

Effects of Six Aphid Species on the Development and Reproduction of Hippodamia variegata (Goeze)

JIANG Yan1,2, XIU Chunli3, WANG Dongmei2, DING Ruifeng2, LI Haobin2, PAN Hongsheng2, LIU Xiaoning1   

  1. 1. College of Life Science and Technology, Xinjiang University/Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, Urumqi 830046, China;
    2. Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences/National Plant Protection Scientific Observation and Experiment Station of Korla, Ministry of Agriculture and Rural Affairs, Urumqi 830091, China;
    3. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
  • Received:2022-01-07 Published:2022-12-16

Abstract: Hippodamia variegata (Goeze) is a dominant predatory natural enemy of many agricultural pests in Xinjiang, such as aphids, mealybugs, and woodlice. It is of great significance to mass produce H. variegata for promoting the green pest control. And the selection of food suitable for the growth, development and reproduction of H. variegata is a perquisite of mass production. The life parameters of H. variegata feeding on six aphid species (Sitobion avenae Fabricius, Aphis atrata Zhang, Aphis gossypii Glover, Rhopalosiphum maidis Fitch, Acyrthosiphon pisum L., Myzus persicae Sulzer) in the laboratory were compared. The results showed that the developmental duration and survival rate of larvae, adult lifespan and fecundity, and generation duration were significantly affected by aphid species. Specifically, the development duration of H. variegata larvae feeding on S. avenae (7.70 d) and R. maidis (7.67 d) was significantly shorter than that of the beetles feeding on the other four aphid species; the weight of female (11.02 mg) and male (8.54 mg) H. variegata adults derived from the larvae feeding on S. avenae was greater; the pupal period (3.80 d) and egg period (2.52 d) were shorter when the larvae fed on A. atrata; the generation duration of H. variegata feeding on S. avenae (20.02 d), A. atrata (21.14 d), A. gossypii (20.07 d), and R. maidis (20.37 d) were shorter; the survival rate of H. variegata larvae feeding on S. avenae (96.33%), A. atrata (96.50%), and A. gossypii (90.67%) were significantly higher than those feeding on the other three aphid species. Meanwhile, female and male H. variegata adults lived longer when feeding on A. atrata (44.67 d) and S. avenae (59.13 d), respectively. The pre-oviposition periods of adults feeding on S. avenae (3.53 d) and A. gossypii (3.68 d) were shorter, and the fecundity of H. variegata was higher when the preys were A. atrata (1044.02) and A. gossypii (1084.45). Taken together, among the six aphid species, S. avenae, A. atrata and A. gossypii are relatively suitable for the growth, development and reproduction of H. variegata, which are relatively ideal live feed for rearing and artificial propagation of H. variegata.

Key words: Hippodamia variegata, aphids, developmental duration, survival rate, longevity, fecundity

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