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Chinese Journal Of Biological Control ›› 2020, Vol. 36 ›› Issue (5): 690-696.DOI: 10.16409/j.cnki.2095-039x.2020.05.011

• RESEARCH REPORTS • Previous Articles     Next Articles

Species Diversity of Drosophila and the Associated Parasitoid Complex in Waxberry Orchard in Zhejiang Province

WANG Zhizhi1, REN Shaopeng2, ZHAN Leqin1, WU Qiong1, HUANG Jianhua1, CHEN Xuexin1   

  1. 1. Institute of Insect Science, Zhejiang University, Hangzhou 310058, China;
    2. Ningbo Academy of Agricultural Sciences, Ningbo 315040, China
  • Received:2019-12-17 Online:2020-10-08 Published:2020-11-20

Abstract: Species diversity of Drosophila and the associated parasitoids was investigated at seven waxberry (Myrica rubra) orchards in Zhejiang province. By combining morphological identification and the mitochondrial COI gene as a molecular marker, we identified six species of Drosophila, i.e. D. melanogaster, D. suzukii, D. simulans, D. takahashii, D. immigrans, and D. virile. We also found nine associated parasitoid species belonging to five genera:Asobara (Braconidae), Ganaspis (Figitidae), Leptopilina (Figitidae), Trichopria (Diapriidae), and Pachycrepoideus (Pteromalidae). Our results showed that the population size of different Drosophila species varied greatly between the orchards, and the percentage of D. suzukii in 2018 was obviously higher than that in 2019. Among the parasitoids collected, the number of Asobara species in most orchards was much higher than those of the other wasps, indicating that Asobara is the dominant group of parasitic wasps in Zhejiang province. Furthermore, we discussed the biological control potential of each parasitoid on Drosophila species, especially on D. suzukii based on the biological characteristics.

Key words: Myrica rubra, Drosophilidae, D. suzukii, parasitic wasps

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