南方小花蝽对非洲菊上西花蓟马控制效果评价  

Control of Frankliniella occidentalis on Gerbera jamesoni by Orius similis

作　　者：刘梅 张昌容[2] 尚小丽 郭军 曾广[1] 石乐娟[5] LIU Mei;ZHANG Changrong;SHANG Xiaoli;GUO Jun;ZENG Guang;SHI Lejuan(Guizhou Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region/Institute of Entomology,Guizhou University,Guiyang 550025,China;Institute of Plant Protection,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China;Key Laboratory of Biology and Medical Engineering/School of Biology and Engineering,Guizhou Medical University,Guiyang 550025,China;Bijie Plant Protection and Quarantine Station,Bijie 551700,China;Institute of Horticultural,Guizhou Academy of Agricultural Sciences,Guiyang 550006,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 [2]贵州省农业科学院植物保护研究所,贵阳550006 [3]贵州医科大学生物与工程学院生物与医学工程重点实验室,贵阳550025 [4]贵州省毕节市植保植检站,毕节551700 [5]贵州省农业科学院园艺研究所,贵阳550006

出　　处：《中国生物防治学报》2020年第6期992-996,共5页Chinese Journal of Biological Control

基　　金：国家自然科学基金(31660542);贵州省自然科学基金(黔科合基础-2020-1Z024);贵州省科技计划项目(20165802);黔农科院院专项(2016027);黔科合支撑(20162614)。

摘　　要：为评价南方小花蝽Orius similis对非洲菊上西花蓟马的控制效果,本研究在非洲菊上以2头/m2密度释放南方小花蝽,以西花蓟马的虫口减退率及南方小花蝽对西花蓟马校正防效作为指标评价了其控害效果。结果显示:在释放南方小花蝽前期,南方小花蝽对非洲菊上西花蓟马的控制效果不明显,但随着释放时间延长,控制效果显著提高,释放南方小花蝽21 d后的控制效果高达90.25%,而喷施化学农药的控制效果为−40.93%,释放南方小花蝽的控制效果远高于喷施化学农药处理,表明南方小花蝽对西花蓟马具有更高效持久的控制潜力。To determine the control efficacy of a predator Orius similis on Frankliniella occidentalis,O.similis was released at 2 per square meter to Gerbera jamesoni flowerbeds.And then we investigated the population decline rate of F.occidentalis and the corrected control efficacy of O.similis on F.occidentalis.The results showed that,in the days right after releasing O.similis,the control efficacy on F.occidentalis was not evident;however,with extension of time delay after the release,the control efficacy increased significantly and was higher than that achieved by spraying chemical pesticides.The control efficacy reached as high as 90.25%at 21 days after the release while chemical control efficacy was reduced to−40.93%.These data indicate that O.similis has higher control potential on F.occidentalis compared with chemical control.

关 键 词：生物防治 南方小花蝽 西花蓟马 非洲菊 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]