噻虫嗪种薯包衣对马铃薯桃蚜取食行为的影响  

Effect of coating potato seed with thiamethoxam on feeding behavior of Myzus persicae

作　　者：李昭煜[1] 刘永刚[1,2] 李佳佳[1,2] 张海英[2] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]甘肃省农业科学院植物保护研究所,甘肃兰州730070

出　　处：《草原与草坪》2016年第1期60-64,共5页Grassland and Turf

基　　金：甘肃省农业科学院农业科技创新专项"马铃薯脱毒种薯包衣技术的研究与应用(2012GAAS07-2)"资助

摘　　要：以噻虫嗪包衣、拌种和空白的马铃薯苗为对象,应用刺探电位图谱(EPG)技术研究马铃薯种薯包衣对桃蚜取食行为的影响。结果表明:桃蚜在噻虫嗪包衣马铃薯苗上取食的过程中,np波和C波次数增加,口针在细胞间穿刺的频率明显增高;E1波和E2波次数减少,桃蚜取食次数减少;首次出现E1波历期显著延长,E2波持续时间缩短,噻虫嗪包衣阻碍桃蚜在马铃薯苗上取食,使取食时间推后,取食量减少。The effect of coating and dressing potato seed with thiamethoxam on feeding behaviour of Myzus persicaewas studied through electrical penetration graph technology（EPG）.The results showed that the frequency of np wave,C wave and stylet in intercellular penetration increased,and the values of E1 wave and E2 reduced.The period of E1 wave significantly prolonged and the duration of the E1 wave shortened.The feeding of Myzus persicae was hindered by thiamethoxam coating and the feeding time was delayed,the feeding amount reduced.

关 键 词：马铃薯 桃蚜 取食行为 包衣 EPG 

分 类 号：Q966[生物学—昆虫学]