两种体色灰茶尺蠖的发生动态及两种性信息素诱芯的诱捕效果
Population dynamics of two biotypes Ectropis grisescens and the effectiveness of two sex pheromone lures for trapping this pest
耿书宝1, 2** 陈 磊1, 2 侯贺丽3 潘鹏亮1, 2 郭世保1, 2 周 洲1, 2 张方梅 1, 2 乔 利 1, 2***
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DOI：10.7679/j.issn.2095-1353.2025.041
作者单位：1. 信阳农林学院农学院，信阳 464000；2. 河南省大别山实验室，信阳464000；3. 信阳农林学院食品科学与工程学院，信阳 464000
中文关键词：灰茶尺蠖；发生动态；性信息素；体色
英文关键词： Ectropis grisescens; occurrence dynamics; sex pheromone; body color
中文摘要：
【目的】 明确信阳市茶园中灰茶尺蠖Ectropis
grisescens年发生代数和各代成虫发生高峰期，比较两种性信息素诱芯对灰茶尺蠖的诱捕效果，调查灰色型和黑色型灰茶尺蠖的田间发生比例。【方法】 在2019-2021年利用灰茶尺蠖性信息素诱芯和茶尺蠖性信息素诱芯调查了信阳市茶园中灰茶尺蠖灰色型和黑色型的发生动态。【结果】 在信阳市，灰茶尺蠖第1-5代的成虫发生高峰期分别在3月下旬、5月下旬、7月上旬、8月上旬和9月上中旬。灰茶尺蠖各代成虫发生量存在显著差异（P<0.05），在2020年调查的潘新镇肖庄茶园（SC）中第5代成虫发生量高达（189.3±10.3）头/诱捕器。灰茶尺蠖年均诱捕量在各个茶园中存在显著差异（P<0.05），2020年在SC茶园中年发生量最大，为（549.3±34.6）头/诱捕器。灰色型个体比例很高，灰色型和黑色型的比值在19.2∶1-212.1∶1之间。【结论】 灰茶尺蠖在信阳市每年发生5代，灰色型和黑色型的年发生动态曲线相似，2种性信息素诱芯对灰茶尺蠖的田间诱捕效果没有差异。研究结果可为茶园害虫绿色防控研究，以及灰茶尺蠖的体色型田间发生比例提供数据参考。
英文摘要：
[Aim] To clarify the annual
generation number and peak of adult occurrence in each generation of E. grisescens in Xinyang tea plantations, to compare the
effectiveness of two sex pheromones for trapping this pest, and to investigate
the ratio of gray and black adults in the field. [Methods] Two sex pheromones were used to investigate
the occurrence of grey and black E.
grisescens in
tea plantations in Xinyang City from 2019 to 2021. [Results] In Xinyang, the peak occurrence of adults of
the 1st to 5th generations is in late March, late May, early July, early August
and early mid-September, respectively. There were significant differences in
the number of adults in each generation; the number of 5th generation adults
captured was as high as (189.3 ± 10.32) per trap in the SC tea plantation in
2020. Average annual trap-catch differed significantly among different tea
plantations (P<0.05). Most [(549.3 ± 34.63) per trap]were caught in
the SC tea plantation in 2020. The proportion of the gray biotype was very
high; the ratio of gray to black biotypes ranged from 19.2∶1 to 212.1∶1. [Conclusion] There are 5 generations of E. grisescens in Xinyang annually and the annual
population dynamics of the gray and black biotypes are similar. There was no
significant difference in the number of individuals caught using the two kinds
of sex pheromone tested. These results support the development of
environmentally-friendly pest control in tea gardens, and reveal the relative
abundance of the grey and black biotypes of E. grisescens in the field.