欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (26): 55-59.doi: 10.11924/j.issn.1000-6850.casb16030002

• 植物保护 农药 • 上一篇    下一篇

美国白蛾自然种群生命表的组建与分析

信善林1,孔雪华2,苏继祥1,刘燕峰1   

  1. (1寿光市林业局,山东寿光 262700；2潍坊科技学院,山东寿光 262700）
  • 收稿日期:2016-03-01 修回日期:2016-03-22 接受日期:2016-03-25 出版日期:2016-09-21 发布日期:2016-09-21
  • 通讯作者: 信善林
  • 基金资助:
    无基金

Construction and Analysis of Natural Population Life Table of Hyphantria cunea

Xin Shanlin1, Kong Xuehua2, Su Jixiang1, Liu Yanfeng1   

  1. (1Shouguang Forestry Bureau, Shouguang Shandong 262700;2Weifang University of Science and Technology, Shouguang Shandong 262700)
  • Received:2016-03-01 Revised:2016-03-22 Accepted:2016-03-25 Online:2016-09-21 Published:2016-09-21

PDF (PC)

378

摘要： 为了研究美国白蛾自然种群消长动态，采用作用因子组建了美国白蛾1年连续3个世代自然种群生命表，并对美国白蛾种群生命表进行了研究和讨论。结果表明，美国白蛾种群数量发展趋势指数第一代最高为230.39，第三代最低为43.97；寄生天敌是影响第一、二代美国白蛾自然种群的重要因子，第三代重要因子是自然死亡和寄生天敌，并且寄生天敌对美国白蛾的排除作用控制指数逐代升高，第一代最低为1.150，第三代最高为1.862。白蛾周氏啮小蜂是寄生美国白蛾的优势种。该结果为美国白蛾预测预报、综合防治提供理论依据。

关键词: 土壤水分, 土壤水分, 冬小麦, 形态特征, 影响效应, 研究

Abstract: In order to study the natural population dynamics of Hyphantria cunea, the acting factors were used to build a life table of natural populations of Hyphantria cunea in three generations within a year, and the life table was studied and discussed. The results showed that the population trend indexes of the first and third generation were 230.93 and 43.97, which were the maximum and minimum, respectively. Parasite enemy was the important factor influencing the first and second generation of Hyphantria cunea, and both natural death and parasite enemy were the important factor influencing the third generation. Furthermore, exclusion index of population control (EIPC) of parasite enemy of the first generation was the lowest (1.150), and that of the third generation was the highest (1.862). Chouioia cunea (Hymenoptera: Eulophidae) was the dominant species. The results provide a theoretical basis for the comprehensive prevention and forecast of Hyphantria cunea.