| 唐艺婷, 李玉艳, 刘晨曦, 毛建军, 陈红印, 张礼生*, 王孟卿*.蠋蝽对草地贪夜蛾的捕食能力评价和捕食行为观察[J].植物保护,2019,45(4):65-68. |
| 蠋蝽对草地贪夜蛾的捕食能力评价和捕食行为观察 |
| Predation and behavior of Arma chinensis toSpodoptera frugiperda |
| 投稿时间：2019-05-28 修订日期：2019-06-03 |
| DOI：DOI: 10.16688/j.zwbh.2019264 |
| 中文关键词: 蠋蝽 草地贪夜蛾 捕食 生物防治 |
| 英文关键词:Arma chinensis Spodoptera frugiperda predatory biological control |
| 基金项目:国家重点研发计划(2017YFD0201000，2017YFD0800705) |
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| 中文摘要: |
| 为了探究蠋蝽对草地贪夜蛾的捕食潜力, 本试验在室内条件下评价了蠋蝽5龄若虫对草地贪夜蛾6龄幼虫的捕食能力, 结合田间观察总结了蠋蝽捕食行为特点。结果表明：蠋蝽5龄若虫对草地贪夜蛾6龄幼虫的捕食功能反应符合HollingⅡ模型, 对草地贪夜蛾6龄幼虫的日最大捕食量、瞬时攻击率和处理时间分别为3.175头、1.344和0.315 d; 蠋蝽锁定猎物后, 其口针可从草地贪夜蛾的头部、胸部或腹部各节刺入, 当猎物尝试摆脱时蠋蝽随其移动, 维持口针伸展刺入猎物体内的状态, 直至猎物被征服失去活力; 蠋蝽对草地贪夜蛾幼虫吮吸持续时间较长, 直至草地贪夜蛾幼虫体躯干瘪后, 蠋蝽才收回口针, 继续搜索并攻击下一头猎物。试验证实蠋蝽对草地贪夜蛾具有较好的控害效果, 可用于对草地贪夜蛾的防控实践。 |
| 英文摘要: |
| In order to investigate the predation potential of Arma chinensis (Fallou) 5th instar nymph to 6th instar larvae of Spodoptera frugiperda (J.E.Smith), the functional responses and predation behavior of A. chinensis were studied in laboratory. The results show that predator exhibited Holling Ⅱ functional response, with the maximum daily predation number, the sequence of attacking efficiency and handling time were 3.175 individuals, 1.344 and 0.315 d respectively. After locking the prey, A. chinensis could pierce its stylet into the head, chest or abdomen of S.frugiperda. If the prey tried to get rid of the predator, A. chinensis moved with the prey, maintaining the state of the stylet stretching into the prey until S.frugiperda was conquered and lost its vitality. The sucking time lasted for a long time, until the body of S.frugiperda was empty and dry. Then A. chinensis withdrew the stylet, moved to search and attack the next prey. The study proved that A. chinensis is efficient for the control of S.frugiperda, and can be used in field. |
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