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食蚜瘿蚊对茶蚜的捕食功能反应

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茶蚜Toxoptera aurantii(Boyer)是茶树的重要害虫,评估食蚜瘿蚊Aphidoletes aphidimyza(Rondani)对茶蚜的防控潜能,为大田释放天敌食蚜瘿蚊防治茶蚜提供理论依据.在室内条件下,探索了饥饿处理24h的食蚜瘿蚊3 龄幼虫对3 龄茶蚜的捕食功能反应、搜寻效应和自身的种内干扰作用,试验完成后继续饲喂,直至食蚜瘿蚊羽化,观察其性别.结果表明:食蚜瘿蚊雌、雄幼虫对茶蚜的捕食功能反应均符合HollingⅡ模型,雌、雄幼虫的最大日捕食量分别为19.1、24.5 头,瞬时攻击率(a′)分别为0.780、0.459,处理时间(Th)分别为0.052、0.041 d;食蚜瘿蚊捕食量随着茶蚜密度的增加而增加,搜寻效应随着茶蚜密度的增加而下降,自身密度干扰方程为E=0.421P-0.892,相同的猎物密度下,雌虫的搜寻效应高于雄虫.食蚜瘿蚊对茶蚜具有较好的控害潜能,且雌虫对茶蚜的控害能力优于雄虫.
The Predation Functional Responses of Aphidoletes aphidimyza to Toxoptera aurantii
Toxoptera aurantii(Boyer)is an important pest of Tea plant.Evaluating the control potential of Aphidoletes aphidimyza(Rondani)against T.aurantii,could provide a theoretical basis for releasing A.aphidimyza to control T.aurantii in the field.Under indoor conditions,the predation functional response,searching effect and intraspecific interference of the 3rd instar larvae of A.aphidimyza starved for 24 h to 3rd instar nymphs of T.aurantii were explored.After the predation function experiment,A.aphidimyza was fed continuously until emergence,and its sex was observed.The results showed that the predatory functional responses of female and male A.aphidimyza larvae to T.aurantii were consistent with the Holling II model.The maximum daily predation of female and male larvaes were 19.1 and 24.5,respectively.The instantaneous attack rates(a′)were 0.780 and 0.459,with a handing time(Th)of 0.052 and 0.041 d,respectively.The predation amount of A.aphidimyza increased with the increase of the tea aphid density,except for the searching efficiency,and the density interference equation of A.aphidimyza larvae was E=0.421P-0.892.Under the same prey density,the searching efficiency of females was higher than males.A.aphidimyza has better control potential against tea aphid,and the control ability of female is better than that of male.

Aphidoletes aphidimyza(Rondani)Toxoptera aurantii(Boyer)predation functionsearching efficiencyinterference response

李梦莎、王雄、李帅、杨茂发、黄纯杨、于晓飞、吴慧子

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贵州省烟草品质研究重点试验室/贵州大学 烟草学院,贵州 贵阳 550025

贵州大学 昆虫研究所,贵州 贵阳 550025

贵州省农业科学院茶叶研究所,贵州 贵阳 550025

贵州省烟草公司遵义市公司,贵州 遵义 564200

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食蚜瘿蚊 茶蚜 捕食功能 搜寻效应 种内干扰

贵州省烟草公司遵义市公司重点研发项目贵州省烟草公司遵义市公司重点研发项目贵州省烟草公司遵义市公司成果转化项目贵州省烟草公司遵义市公司成果转化项目贵州省烟草公司遵义市公司科技项目贵州大学人才引进项目

2022XM1120225203002701882020xm052021520300200081遵烟计[2016]1贵大人基合字[2016]70

2024

10.15958/j.cnki.sdnyswxb.2024.03.011

山地农业生物学报
贵州大学

山地农业生物学报

CSTPCD
影响因子：0.486
ISSN：1008-0457
年,卷(期)：2024.43(3)
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