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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (27): 142-148.doi: 10.11924/j.issn.1000-6850.casb2025-0198

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A Study on Application of Sex Pheromone Trapping Systems for Glyphodes pyloalis Walker in Mulberry Orchards

CHEN Yonghuang(), SONG Zhiguang, YANG Biwen, LUO Taiming, TANG Lu, XU Hong, SONG Changgui()   

  1. Chongqing Sericulture Science and Technology Research Institute, Chongqing 400799
  • Received:2025-03-12 Revised:2025-08-04 Online:2025-09-25 Published:2025-10-07

Abstract:

The study aims to optimize the technical parameters of the sex pheromone trapping system for Glyphodes pyloalis Walker and enhance the efficiency of its green control. Using the sex pheromone trapping system for G. pyloalis as the focal subject, this study evaluated the effects of trap installation height and trap type on trapping efficacy. Furthermore, the relationship between the adult emergence periods of the overwintering generation and the previous generation with climatic factors were analyzed. The results showed that positioning the lower edge of the trap at 0.10 m above the tree canopy top significantly increased the number of captured adults compared to other treatments. The Noctuidae-type trap captured the highest average number of adults (38.67), significantly outperforming other trap types. Moreover, the overwintering generation and the second generation of adults overlapped in early May, resulting in a genetically mixed and complex population. The emergence of the final generation was closely linked to climatic conditions, with the highest daily capture rate (7.25 individuals per day) recorded on sunny days and the lowest (2.00 individuals per day) on rainy days. Adult capture ceased entirely when the maximum daily winter temperature remained consistently below 20 ℃. The Noctuidae-type trap exhibited the most effective trapping performance and should be dynamically adjusted according to the growth stage of mulberry trees, ensuring that its lower edge remains consistently 0.10 m above the canopy top.

Key words: Glyphodes pyloalis Walker, sex pheromone trap system, installation height, trap type, green control