温度对军配盲蝽耐饥力及捕食效能影响  

Effects of temperature on starvation tolerance and predation efficiency of Stethoconus japonicus(Hemiptera)

作　　者：罗优 殷郑艳 赵如娜 陈文龙[1] LUO You;YIN Zhengyan;ZHAO Runa;CHEN Wenlong(Guizhou Key Laboratory of Plant Diseases and Pest Management for Mountainous Agriculture,Institute of Entomology,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学昆虫研究所,贵州省山地农业病虫害重点实验室,贵阳550025

出　　处：《植物保护》2021年第4期118-121,147,共5页Plant Protection

基　　金：贵州省科技支撑计划(20182362)。

摘　　要：为明确温度变化对军配盲蝽Stethoconus japonicus成虫耐饥力及其捕食作用的影响,了解其控害潜能,在15、20、25、30℃和35℃5个处理温度,RH(70±5)%,L∥D=14 h∥10 h下测定了军配盲蝽成虫耐饥力及对不同密度(5、10、15、20头/皿和25头/皿)悬铃木方翅网蝽Corythucha ciliata的日均捕食量。不同温度下军配盲蝽成虫对悬铃木方翅网蝽成虫的捕食功能反应均属于HollingⅡ型。15~35℃范围内,随着温度的升高,军配盲蝽耐饥饿力逐渐减弱;在该温度范围内,军配盲蝽成虫对悬铃木方翅网蝽的捕食效能先增强后减弱;同一温度下,军配盲蝽成虫对悬铃木方翅网蝽的寻找效应随猎物密度的增加而降低。在30℃下,军配盲蝽成虫的捕食效能(ɑ′/T_(h))最大,为14.9868,捕食上限(1/T_(h))为41.2头,15℃下,ɑ′/T_(h)最小,为3.4583,1/T_(h)最低,为16.7头。温度对军配盲蝽成虫的耐饥力与捕食效能有显著影响,研究结果可为军配盲蝽的田间释放和保护提供参考依据。To determine the effects of temperature on the starvation tolerance and predation capacity of Stethoconus japonicus against Corythucha ciliata,the starvation tolerance and and predation capacity of S.japonicus were measured against C.ciliata under five temperatures(15,20,25,30℃and 35℃),RH(70±5)%and L∥D=14 h∥10 h photoperiod.Average daily predation was also measured under different prey densities(5,10,15,20 and 25 individuals/dish).The predatory functional responses of S.japonicus adults to C.ciliata adults at different temperatures fitted HollingⅡ.In the range of 15-35℃,the starvation tolerance of S.japonicus gradually weakened with increasing temperature,and the predatory ability of S.japonicus adults on C.ciliata first increased and then decreased.At the same temperature,the searching efficiency of S.japonicus adults for C.ciliata decreased with increasing prey density.At 30℃,S.japonicus had the largestɑ′/T_(h) of 14.9868,and the theoretical maximum predation was 41.2 individuals.At 15℃,theɑ′/T_(h) was the least(3.4583 individuals),and the theoretical maximum predation was also the least(16.7 individuals).It suggested that temperature had a significant effect on the starvation tolerance and predation efficiency of S.japonicus adults.This study can provide a reference for the field release and protection of S.japonicus.

关 键 词：温度 军配盲蝽 耐饥力 捕食效能 

分 类 号：S763.35[农业科学—森林保护学]