| 耿书宝1, 2, 陈 磊1, 2, 侯贺丽2, 3, 周国涛4, 黄晓庆5, 周 洲1, 2, 乔 利1, 2*, JUNG Chuleui6*.灰茶尺蠖越冬蛹在茶园的空间分布型及其过冷却点测定[J].植物保护,2025,51(4):235-242. |
| 灰茶尺蠖越冬蛹在茶园的空间分布型及其过冷却点测定 |
| Spatial distribution pattern and supercooling point of overwintering pupae of Ectropis grisescens in tea plantations |
| 投稿时间：2024-09-24 修订日期：2024-10-15 |
| DOI：10.16688/j.zwbh.2024502 |
| 中文关键词: 灰茶尺蠖 越冬蛹 过冷却点 空间分布型 聚集度指标 |
| 英文关键词:Ectropis grisescens overwintering pupae supercooling point spatial distribution pattern aggregation index |
| 基金项目:国家自然科学基金（32402364）；河南省科技攻关项目（242102110178）；信阳农林学院青年骨干教师培养计划项目；河南省高等学校重点科研项目（24B210012）；信阳生态研究院开放基金（2023XYQN08，2023XYMS11） |
| 作者 | 单位 | E-mail | | 耿书宝1, 2, 陈 磊1, 2, 侯贺丽2, 3, 周国涛4, 黄晓庆5, 周 洲1, 2, 乔 利1, 2*, JUNG Chuleui6* | 1. 信阳农林学院农学院, 信阳 464000
2. 信阳生态研究院, 信阳 464000
3. 信阳农林学院食品科学与工程学院, 信阳 464000
4. 河南云飞科技发展有限公司, 郑州 450003
5. 中国农业科学院植物保护研究所, 北京 100193
6. 安东大学, 韩国安东 36729 | 乔利2017180004@xyafu.edu.cn；Jung Chuleui cjung@anu.ac.kr |
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| 中文摘要: |
| 灰茶尺蠖Ectropis grisescens是我国茶树上主要害虫之一。本文调查和测定了灰茶尺蠖越冬蛹的形态特征和过冷却点等生物学特征, 通过频次分布法和聚集度指标法, 判断了灰茶尺蠖越冬蛹在茶园的空间分布型。结果表明, 越冬雌蛹和雄蛹距茶树根部的距离分别为(22.21±0.95) cm和(23.80±1.06) cm, 二者之间无显著差异。雌蛹的平均重量为(0.171±0.007) g, 显著高于雄蛹(0.117±0.003) g。雌蛹的体长和体宽分别为(14.27±0.141) mm和(5.08±0.048) mm, 均显著大于雄蛹的体长(12.87±0.111) mm和体宽(4.48±0.046) mm。通过10种聚集度指标法和频次分布法, 判定越冬蛹在茶园的空间分布型属于聚集分布中的负二项分布。不同时期采集的雌、雄越冬蛹的过冷却点存在显著差异。2020年12月20日采集的雌蛹过冷却点最低, 为(-13.56±0.55)℃。2021年1月9日采集的雄蛹过冷却点最高, 为(-9.30±0.69)℃。本文初步明确了灰茶尺蠖越冬蛹的抗寒能力及越冬行为, 研究结果对确定灰茶尺蠖的潜在越冬地理分布、田间预测预报和绿色防控具有重要意义。 |
| 英文摘要: |
| Ectropis grisescens is one of the major insect pests on tea trees in China. In this study, the morphological and physiological characteristics of overwintering pupae were investigated and their spatial distribution patterns in tea plantations were determined using frequency distribution and aggregation index methods. The results showed that the average distances from female and male pupae to the base of tea trees were (22.21±0.95) cm and (23.80±1.06) cm, respectively, with no significant difference. The average weight of female pupae (0.171±0.007) g was significantly higher than that of males (0.117±0.003) g. The body length and width of female pupae were (14.27±0.141) mm and (5.08±0.048) mm, respectively, which were significantly greater than those of male pupae (12.87±0.111) mm and (4.48±0.046) mm, respectively. Based on 10 aggregation indices and the frequency distribution method, the spatial distribution pattern of overwintering pupae conformed to a negative binomial (aggregated) distribution. Significant differences in supercooling points of female and male overwintering pupae collected at different periods . Female pupae collected on December 20, 2020 had the lowest SCP (-13.56±0.55)℃, while male pupae collected on January 9, 2021 had the highest SCP (-9.30±0.69)℃. These findings provide insights into the cold tolerance and overwintering behavior of E.grisescens, offering a theoretical basis for predicting its overwintering distribution, improving field monitoring, and supporting green pest control strategies. |
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