摘要
为了探究天敌昆虫益蝽对草地贪夜蛾的捕食潜力,本试验在室内条件下评价了益蝽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益蝽的捕食行为特点。结果表明:益蝽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4.671头、1.512和0.215d;益蝽偏食活猎物,对草地贪夜蛾幼虫致死量大,当草地贪夜蛾幼虫密度大时,益蝽将一头猎物刺吸致死后并不持续吸取,而是快速攻击其他猎物,这一特点对于控制草地贪夜蛾种群数量十分有利。
In order to investigate the predatory potential of the 5th instar nymphs of Picromerus lewisi against the 6th instar larvae of Spodoptera frugiperda(J.E.Smith),the functional response and predation behavior of P.lewisi was studied in laboratory.The results showed that the predator exhibited Holling II functional response,with the maximum daily predation number,sequence of attacking efficiency,and handling time of 4.7,1.512 and 0.215 d,respectively.P.lewisi preferred live prey and showed high predatory capacity.When S.frugiperda was at high density,P.lewisi just killed a prey by piercing and quickly turned to attack other preys.This predatory behavior can maximize the predator’s potential for controlling population of S.frugiperda.
作者
唐艺婷
王孟卿
陈红印
王燕
张红梅
陈福寿
赵雪晴
张礼生
TANG Yiting;WANG Mengqing;CHEN Hongyin;WANG Yan;ZHANG Hongmei;CHEN Fushou;ZHAO Xueqing;ZHANG Lisheng(Institute of Plant Protection,Chinese Academy of Agricultural Sciences/USDA-ARS Sino-American Biological Control Laboratory,Beijing 100193,China;Institute of Agricultural Environment&Resource,Yunnan Academy of Agricultural Science,Kunming 650205,China)
出处
《中国生物防治学报》
CSCD
北大核心
2019年第5期698-703,共6页
Chinese Journal of Biological Control
基金
国家重点研发计划（2017YFD0201000,2017YFE0104900）
中国农业科学院创新工程项目
关键词
益蝽
草地贪夜蛾
天敌昆虫
捕食
生物防治
Picromerus lewisi
Spodoptera frugiperda
natural enemy
predation
biological control
