蚜茧蜂对蔬菜田蚜虫的寄生功能反应  

Parasitic Functional Response of Aphidius gifuensis on Aphids in Vegetable Fields

作　　者：张升[1] 文静 陈文龙[1] 战玉[1] 杨彦 张继 杨天沛 

机构地区：[1]贵州大学昆虫研究所,贵州贵阳550025 [2]贵州省毕节市植保植检站,贵州毕节551700 [3]贵州省黔东南州烟草公司,贵州凯里55600

出　　处：《贵州农业科学》2015年第5期95-97,共3页Guizhou Agricultural Sciences

基　　金：中国烟草总公司贵州省公司科技项目专项"贵州省蚜茧蜂复合防控烟蚜的研究与应用"(201312);贵州大学研究生创新基金项目"菜蚜茧蜂对烟蚜的寄生作用"(研农2014010);黔东南州2013年科学技术项目"蚜茧蜂防控烟蚜技术研究与应用"(2013)

摘　　要：为了对蔬菜地蚜虫的生物防治提供参考,研究了烟蚜茧蜂对烟蚜和萝卜蚜的寄生功能反应。结果表明:烟蚜茧蜂的寄生作用受蚜虫密度影响,寄生数量随蚜虫密度的增加而增加;烟蚜茧蜂对烟蚜和萝卜蚜的寄生功能反应均符合HollingⅡ型曲线,寄生功能反应模型分别为Na=0.515 3 N/(1+0.016 8 N)和Na=0.190 6 N/(1+0.020 4 N);烟蚜茧蜂对蚜虫的寄生数量与蚜虫密度呈正相关,寻找效应与蚜虫密度呈负相关,烟蚜茧蜂对烟蚜的寄生作用强于萝卜蚜。To provide references for biological control of aphids in vegetable fields,the parasitic functional response of A.gifuensis on M.persicae and L.erysimi was studied.Results：A.gifuensis’s parasitic action was affected by aphid density,the parasitic amount of A.gifuensis to aphid increased with the increase of aphid density.The functional response of A.gifuensis to M.persicae and L.erysimi were fitted to Holling Ⅱ type equation.Na=0.515 3 N/（1＋0.016 8 N）on M.persicae,Na=0.190 6 N/（1＋0.020 4 N ）on L.erysimi.The parasitic function of A.gifuensis was positively related with aphid densities,as its searching efficiency was negatively associated with aphid densities.And A.gifuensis ’s parasitic effects and searching efficiency to M.persica were all stronger than that to L.erysimi.

关 键 词：烟蚜茧蜂 烟蚜 萝卜蚜 寄生功能 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治] S476[农业科学—植物保护]