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Chinese Journal of Biological Control ›› 2025, Vol. 41 ›› Issue (5): 1095-1103.DOI: 10.16409/j.cnki.2095-039x.2025.05.003

• RESEARCH REPORTS • Previous Articles    

Effects of Temperature Treatment of Bactrocera dorsalis Eggs on Females Attraction

AO Guofu1,2, FU Chaoyang1, XIAO Kang2, JI Qing'e2   

  1. 1. Key Laboratory of Characteristic and Efficient Agricultural Plant Protection Informatization in Central Guizhou/College of Agriculture, Anshun University, Anshun 561000, China;
    2. Institute of Biological Control, Fujian Agriculture and Forestry University/State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education/The Joint FAO-IAEA Division Cooperation Center for Fruit Fly Control in China, Fuzhou 350002, China
  • Received:2024-09-28 Published:2025-10-22

Abstract: The differences of Bactrocera dorsalis eggs from different local populations in attracting females as well as the effects of temperature treatment were investigated under choice and no choice conditions with 0.2 g of eggs. and the temperature treatment effects were tested using 0.8 g B. dorsalis eggs treated at ?20 ℃ , 4 ℃ , and 26 ℃ . The no choice test revealed that females exposed to the eggs of the Fuqing population oviposited more eggs (542.17) than those to Anshun and Fuzhou populations. Contrarily, the choice test indicated that the eggs of the Fuzhou population induced a higher egg deposition (213.17) than those of the Fuqing population, with no significant difference compared with the eggs of the Anshun population. Furthermore, the female attraction rate of the eggs treated at different temperatures for 1 day was not significantly different from that of the fresh eggs; however, eggs treated at 26℃ triggered females to oviposit more eggs (913.67) than the other treatments. After storage at ?20 ℃ , eggs maintained the effects of female attraction and oviposition induction for 42 and 17 days, respectively. After storage at 26℃, eggs showed the corresponding effects for 3 and 2 days, respectively. The results show that eggs of different B. dorsalis populations exhibit differences in attracting females to oviposit, and the temperature and duration of egg storage also have an influence.

Key words: Bactrocera dorsalis, attraction behavior, aggregation, oviposition

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