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Chinese Journal Of Biological Control ›› 2020, Vol. 36 ›› Issue (3): 353-360.DOI: 10.16409/j.cnki.2095-039x.2020.03.013

• RESEARCH REPORTS • Previous Articles     Next Articles

Natural Enemy Complex of Hyphantria cunea (Drury) in Shenyang Area

CHEN Chen1, SONG Liwen2, Zuo Tongtong2, WANG Yue1, NAN Junke1, SUN Shouhui1   

  1. 1. College of Forestry, Shenyang Agricultural University, Shenyang 110161, China;
    2. Jilin Provincial Forestry Research Institute, Changchun 130033, China
  • Received:2019-07-18 Online:2020-06-08 Published:2020-06-12

Abstract: To comprehend natural enemy species of the fall webworm Hyphantria cunea (Drury) and to provide new ideas and approaches for biological control, the composition and the interaction among different populations in the natural enemy complex were investigated in Shenyang, China, from September 2017 to March 2019. Thirty three species of natural enemies were collected, including 14 parasitoids and 19 predators. The 3 species, Enicospilus kigasirae (Uchida), Bessa Remota (Aldrich) and Phebellia Nigripalpis (Robineau-Desuoidy), were the first parasitoid records of the fall webworm larvae in China. Analysis on natural enemy diversity indexes of each generation and developmental stages of the fall webworm showed that the dominant population in the natural enemy complex sorted from high to low were Cotesia gregalis, Compsilura concinnata, and Chouioia Cunea. Using principal component analysis to evaluate and sort the natural enemy complexes of each generation and developmental stage, it was found that natural enemy complexity of the fall webworm's larval stage was higher among all developmental stages, reaching the highest in the second generation.

Key words: Hyphantria cunea, parasitiod, predator, natural enemy complex

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