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Chinese Journal of Biological Control ›› 2025, Vol. 41 ›› Issue (3): 627-634.DOI: 10.16409/j.cnki.2095-039x.2024.07.016

• RESEARCH REPORTS • Previous Articles    

Comparison of Biological Characteristics between Guangzhou and Qingdao Geographical Populations of Pachycrepoideus vindemmiae

LIU Yunjie1, JIANG Chun1, ZHANG Yikun1, JIANG Minghao1, HUANG Feipeng1, ZHU Liang2, WAN Fanghao1,4, MA Chunsen2,3, ZHOU Hongxu1, TENG Ziwen1   

  1. 1. Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management/Shandong Province Laboratory for Biological Invasions and Ecological Security/China-Australia Cooperative Research Center for Crop Healthand Biological Invasions/College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, China;
    2. State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    3. School of Life Science, Hebei University, Baoding 071002, China;
    4. Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
  • Received:2024-04-17 Published:2025-06-20

Abstract: Pachycrepoideus vindemmiae is a parasitoid wasp of fly pupae, with a wide range of hosts and significant biocontrol potential. To elucidate the biological characteristics of P. vindemmiae populations from different geographical origins, guide the screening of genetic resources, and improve its application, we compared the developmental duration, parasitism ability, and stress resistance of P. vindemmiae populations from Guangzhou and Qingdao. The results revealed that the infestation rate and number of offsprings were significantly higher in the Guangzhou population than in the Qingdao population. When only water was provided, or when both water and food were not provided, the adult survival rate of the Qingdao population was significantly higher than that of the Guangzhou population. No significant differences were observed for other biological indicators such as developmental duration from egg to adult emergence, adult lifespan, and survival ability under dry conditions or extreme temperatures. In conclusion, the Guangzhou population of P. vindemmiae has strong parasitic ability, while the Qingdao population shows stronger survival ability under conditions of water and/or food deprivation.

Key words: Pachycrepoideus vindemmiae, geographical population, parasitic ability, stress resistance, biological characteristics

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