棉紅鈴蟲Pectinophora gossypiella和甜菜夜蛾Spodoptera exigua是世界性的重要棉花害蟲。目前,生物防治被認為是最安全的害蟲治理策略之一,在生物防治策略中,天敵防控是最有效的防控方法。南方小花蝽Orius strigicollis Poppius,對鱗翅目害蟲幼蟲的防控效果較好。就現(xiàn)有研究而言,目前仍然缺乏使用兩性生命表工具對南方小花蝽的生命表和在不同溫度下對棉紅鈴蟲和甜菜夜蛾的適應性及防控潛力的研究。因此,本研究將采用兩性生命表方法,在實驗室條件下（75±5%RH和16L:8D）,研究3個不同溫度對南方小花蝽捕食棉紅鈴蟲和甜菜夜蛾卵的適合度,以及對兩種獵物幼蟲的捕食功能反應、捕食潛力和獵物偏好進行評價,并在不同卵密度的條件下測定南方小花蝽對棉紅鈴蟲和甜菜夜蛾卵的適合度和捕食潛力。1)南方小花蝽捕食功能反應參數(shù)測定及其捕食潛力和獵物偏好研究本研究評價了3個溫度條件下南方小花蝽對棉紅鈴蟲和甜菜夜蛾卵及一齡幼蟲的捕食功能反應、捕食潛力以及獵物偏好性。利用邏輯回歸分析和Holling圓盤方程確定了雌性捕食者功能反應的類型和參數(shù)。結果顯示,3個溫度下南方小花蝽... 

【文章頁數(shù)】：150 頁

【學位級別】：碩士

【文章目錄】：
摘要
ABSTRACT
List of abbreviation
chapter 1 General introduction and literature review
    1.1 Economic importance of cotton
        1.1.1 Damage caused by lepidopterous insect pests
    1.2 Background of Orius strigicollis Poppius
        1.2.1 Predating potential of Orius species
        1.2.2 Geographical distribution of O.strigicollis
        1.2.3 Ecological importance of O.strigicollis
    1.3 Biology and life history of O.strigicollis
    1.4 Fitness and predating potential of O.strigicollis
    1.5 Background and damage caused by Pectinophora gossypiella
    1.6 Biological control of P.gossypiella
    1.7 Background and damage caused by Spodoptera exigua
    1.8 Biological control of S.exigua
    1.9 Importance of two-sex life table
    1.10 Objectives and research contents of this thesis
        1.10.1 Thesis objectives
        1.10.2 Research contents
    1.11 Experimental flow chart
chapter 2 Effects of temperature on the predatory functional response,feeding potential and prey preference of Orius strigicollis fed on Pectinophora gossypiella and Spodoptera exigua
    2.1 Introduction
    2.2 Materials and Methods
        2.2.1 Insect culture
            2.2.1.1 Rearing of O.strigicollis
            2.2.1.2 Rearing of P.gossypiella and S.exigua
            2.2.1.3 Illustration of experimental materials/tools
        2.2.2 Experiment1:Functional response of O.strigicollis
        2.2.3 Experiment2:Feeding potential of O.strigicollis
        2.2.4 Experiment3:Prey preference
        2.2.5 Statistical analysis
    2.3 Results
        2.3.1 Functional response parameters of O.strigicollis on P.gossypiella
        2.3.2 Functional response parameters of O.strigicollis on S.exigua
        2.3.3 Feeding potential of O.strigicollis on P.gossypiella
        2.3.4 Feeding potential of O.strigicollis on S.exigua
        2.3.5 Prey preference
            2.3.5.1 Prey preference between P.gossypiella prey stages
            2.3.5.2 Prey preference between S.exigua prey stages
    2.4 Discussion
chapter 3 Using an age-stage,two-sex life table to evaluate the fitness traits of predatory bug Orius strigicollis fed on Pectinophora gossypiella and Spodoptera exigua at three different temperatures
    3.1 Introduction
    3.2 Materials and Methods
        3.2.1 Insect colonies and general rearing
            3.2.1.1 Rearing of O.strigicollis
            3.2.1.2 Culture of P.gossypiella
            3.2.1.3 Rearing of S.exigua
        3.2.2 Two-sex life table traits
            3.2.2.1 Development period
            3.2.2.2 Adult longevity and fecundity
        3.2.3 Life table analysis
    3.3 Results
        3.3.1 Development duration of O.strigicollis at three temperatures
        3.3.2 Oviposition and fecundity of adults at three temperatures
        3.3.3 Consumption of O.strigicollis on P.gossypiella and S.exigua eggs at three temperatures
        3.3.4 Population parameters of O.strigicollis at three temperatures
        3.3.5 Age-stage and age-specific survival rate of O.strigicollis at three temperatures
        3.3.6 Life expectancy of O.strigicollis at three temperatures
        3.3.7 Reproductive value of O.strigicollis at three temperatures
    3.4 Discussion
chapter 4 Using a two-sex life table tool to calculate the fitness of Orius strigicollis as a predator of Pectinophora gossypiella and Spodoptera exigua
    4.1 Introduction
    4.2 Materials and Methods
        4.2.1 Insect cultures
            4.2.1.1 Rearing of O.strigicollis
            4.2.1.2 Collection of P.gossypiella
            4.2.1.3 Rearing of S.exigua
        4.2.2 Feeding potential of O.strigicollis
        4.2.3 Selection pressure and biological parameters
            4.2.3.1 Effects of different preying densities on developmental period of O.strigicollis
            4.2.3.2 Longevity,oviposition,and fecundity of O.strigicollis
        4.2.4 Prey preference
        4.2.5 Feeding potential and life table analysis
    4.3 Results
        4.3.1 Feeding potential of O.strigicollis under different prey densities of P.gossypiella
        4.3.2 Biological parameters of O.strigicollis under different prey densities of P.gossypiella
            4.3.2.1 Developmental period
            4.3.2.2 Longevity,oviposition,and fecundity of adults
        4.3.3 Population parameters of O.strigicollis under different prey densities of P.gossypiella
        4.3.4 Age-stage and age-specific survival of O.strigicollis under different prey densities of P.gossypiella
        4.3.5 Life expectancy of O.strigicollis under different prey densities of P.gossypiella
        4.3.6 Reproductive value of O.strigicollis under different prey densities of P.gossypiella
        4.3.7 Prey preference of O.strigicollis on P.gossypiella prey stages
        4.3.8 Feeding potential of O.strigicollis under different prey densities of S.exigua
        4.3.9 Biological parameters of O.strigicollis under different prey densities of S.exigua
            4.3.9.1 Developmental period
            4.3.9.2 Longevity,oviposition,and fecundity of adults
        4.3.10 Population parameters of O.strigicollis under different prey densities of S.exigua
        4.3.11 Age-stage and age-specific survival rate of O.strigicollis under different prey densities of S.exigua
        4.3.12 Life expectancy of O.strigicollis under different prey densities of S.exigua
        4.3.13 Reproductive value of O.strigicollis under different prey densities of S.exigua
        4.3.14 Prey preference of O.strigicollis on S.exigua prey stages
    4.4 Discussion
chapter 5 Summary and future perspectives
References
Publications
Acknowledgement


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