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茶叶科学 ›› 2022, Vol. 42 ›› Issue (6): 828-838.doi: 10.13305/j.cnki.jts.2022.06.008

• 研究报告 • 上一篇    下一篇

两性生命表研究灰茶尺蠖与茶尺蠖生长发育和繁殖力

葛繁星1,2,3, 史凡2,3, 程春喜2,3,4, 陈李林2,3,*   

  1. 1.福建农林大学安溪茶学院,福建 安溪 362406;
    2.闽台作物有害生物生态防控国家重点实验室,福建农林大学植物保护学院,福建 福州 350002;
    3.中国白茶研究院,福建 福鼎 355200;
    4.福建农林大学生命科学学院,福建 福州 350002
  • 收稿日期:2022-01-07 修回日期:2022-04-19 出版日期:2022-12-15 发布日期:2023-01-04
  • 通讯作者: * llchen@fafu.edu.cn
  • 作者简介:葛繁星,女,硕士研究生,主要从事茶树病虫害可持续生态调控研究。
  • 基金资助:
    女茶师非遗传习所科技特派员工作站(安科特派办〔2021〕3号)、国家自然科学基金(31501650)、福建农林大学科技创新专项基金(CXZX2019009G)、福建省创新战略研究计划(2020R0036)、福建农林大学茶产业链科技创新与服务体系建设项目(K1520005A03)

Development and Reproduction of Ectropis grisescens and Ectropis obliqua Based on the Two-Sex Life Table

GE Fanxing1,2,3, SHI Fan2,3, CHENG Chunxi2,3,4, CHEN Lilin2,3,*   

  1. 1. Anxi Tea College, Fujian Agriculture and Forestry University, Anxi 362406, China;
    2. State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
    3. Institute of China White Tea, Fuding 355200, China;
    4. College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2022-01-07 Revised:2022-04-19 Online:2022-12-15 Published:2023-01-04

摘要: 灰茶尺蠖[Ectropis grisescens (Warren)]与茶尺蠖[Ectropis obliqua (Prout)]为茶园两种重要的食叶性害虫,严重影响茶叶的产量和品质。利用年龄-阶段两性生命表,在室内测定两种尺蠖的生长发育指标及年龄-阶段特征存活率、雌成虫年龄-阶段特征繁殖力、年龄-阶段特征寿命期望值、年龄-阶段特征繁殖值和种群参数,并分析各参数的差异。结果表明,灰茶尺蠖的1、2、4、5龄幼虫发育历期、幼虫总历期、蛹期及成虫寿命(分别为3.22、2.55、1.43、4.56、15.34、7.98、7.59 d)均显著低于茶尺蠖(分别为4.07、3.05、2.16、5.71、18.83、8.88、10.65 d);灰茶尺蠖2~5龄幼虫存活率(分别为100.00%、95.00%、62.00%和96.00%)均高于茶尺蠖(分别为93.00%、71.00%、45.00%和80.00%);灰茶尺蠖平均世代周期(32.412 d)显著短于茶尺蠖(36.016 d)。灰茶尺蠖年龄-阶段特征存活率、内禀增长率比茶尺蠖高,平均世代周期(T)比茶尺蠖短,其种群能更迅速扩增。研究结果为灰茶尺蠖和茶尺蠖室内种群饲养提供基础数据,为两近缘种的竞争机制及种群控制策略选择提供理论依据。

关键词: 灰茶尺蠖, 茶尺蠖, 年龄-阶段两性生命表, 存活率, 繁殖力

Abstract: Ectropis grisescens Warren and Ectropis obliqua Prout are two serious defoliators in tea gardens, which affect both yield and quality of tea. In the study, using the age-stage two-sex life table, the growth and development indices, age-stage-specific survival rate, age-stage-specific fecundity, age-stage-specific life expectancy, age-stage-specific reproductive value, and population parameters of tea geometrid were measured and the differences of the parameters were analyzed. The results show that the developmental duration of the 1st, 2nd, 4th, and 5th instar larvae, the total duration of larvae, the pupal stage, and the adult longevity of E. grisescens (3.22, 2.55, 1.43, 4.56, 15.34, 7.98, and 7.59 d, respectively) were significantly lower than those of E. obliqua (4.07, 3.05, 2.16, 5.71, 18.83, 8.88, and 10.65 d, respectively). The survival rates of the 2nd to 5th instars larvae of E. grisescens were 100.00%, 95.00%, 62.00% and 96.00%, respectively, which were significantly higher than those of E. obliqua (93.00%, 71.00%, 45.00% and 80.00%, respectively). The mean generation duration of E. grisescens was 32.412 d, which was significantly shorter than that of E. obliqua (36.016 d). The age-stage-specific survival rate and intrinsic rate of increase of E. grisescens were higher than those of E. obliqua, and the mean generation duration was shorter than that of E. obliqua. The population of E. grisescens could expand more rapidly. The results provided basic data for the lab population rearing of E. grisescens and E. obliqua, and provided theoretical basis for the competition mechanism and the selection of population control strategies of the two sibling species.

Key words: Ectropis grisescens, Ectropis obliqua, age-stage two-sex life table, survival rate, fecundity

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