摘要
基于对草莓上蚜虫发生情况的调查,开展了释放不同比例的烟蚜茧蜂Aphidius gifuensis(Ashmead)对草莓上蚜虫的防治效果实验.结果表明,草莓实验地蚜虫优势种为棉蚜,占90%以上,蚜虫在草莓不同部位的分布差异无统计学意义.放蜂后15 d内,蜂蚜比1∶50和1∶100的最大虫口减退率为57.09%和-27.80%,而对应的最高寄生率分别可达20.49%和15.79%.烟蚜茧蜂对草莓上部和下部叶片蚜虫的寄生率高于中部叶片,但差异无统计学意义.研究结果可为有效控制草莓蚜虫提供理论依据.
Based on the investigation of the aphids occurrence on strawberry,the control effect of Aphidius gifuensis Ashmead on strawberry aphid has been carried out.The results show that Aphis gossypii Glover is the dominant species of strawberry aphid,accounting for more than 90%,and the distribution of aphid in different parts of strawberry plants is no significant difference.When wasp release ratio is 1:50 and 1∶100,the maximal decline rate of the insect density is 57.09%and-27.80%respectively,and the highest parasitization is 20.49%and 15.79%respectively within 15 days after releasing parasitoid wasp.The parasitism rate of A.gifuensis for aphid on the upper and lower leaves of strawberry plant is higher than that on the middle leaves,but the difference is not significant.The results can provide theoretical basis for effective control of strawberry aphid.
作者
覃韧
李戎
潘应拿
周仕涛
陈文龙
QIN Ren;LI Rong;PAN Ying-na;ZHOU Shi-tao;CHEN Wen-long(Institute of Entomology Guizhou University/Guizhou Key Laboratory of Plant Diseases and Pest Management for Mountainous Agriculture,Guiyang 550025,China;Agricultural Technology Extension Station,Jiulongpo District,Chongqing 400051,China)
出处
《西南师范大学学报(自然科学版)》
CAS
北大核心
2020年第10期49-54,共6页
Journal of Southwest China Normal University(Natural Science Edition)
基金
贵州省科技支撑计划项目(20182362)
中国烟草总公司贵州省公司科技专项(201312)。
关键词
草莓蚜虫
烟蚜茧蜂
放蜂比例
控制效果
Aphids on strawberry
Aphidius gifuensis Ashmead
wasp release ratio
control effect