摘要
为筛选防治烟蚜抑制效果较好的杀虫剂,在室内的条件下,采用浸叶法测定了四种杀虫剂对烟草蚜虫的毒力。结果表明,5%啶虫脒乳油对烟草蚜虫毒力较低,LC_(50)值为50. 1172 mg/L,毒力较高的药剂为0. 3%苦参碱水剂,其LC_(50)为1. 4328 mg/L,而70%吡虫啉水分散粒剂和0. 3%印楝素水剂对烟草蚜虫的LC_(50)值分别为16. 7430mg/L、4. 2007 mg/L,两种植物源杀虫剂0. 3%苦参碱水剂和0. 3%印楝素乳油对烟草蚜虫的毒力较好。
In order to select insecticides with good inhibitory effect on Myzus persicae(Sulzer),the toxicities of four insecticides against M.persicae were determined by leaf dipping method in the laboratory.The results showed that 5%acetamiprid emulsifiable concentrate(EC)had the weakest toxicity to the adults of M.persicae and the LC 50 value was 50.1172 mg/L,while 0.3%matrine aqueous solution(AS)had the strongest toxicity to the aphids and the LC 50 value was 1.4328 mg/L.The LC 50 value of 70%imidacloprid water-dispersible granules(WG)was 16.7340 mg/L and that of 0.3%azadirachtin AS was 4.2007 mg/L.It is clear that 0.3%matrine AS and 0.3%azadirachtin EC,both of which are sourced from plants,had higher toxicity to M.persicae than other two insecticides.
作者
吴帅
李荣玉
赵琪君
吴小毛
尹显慧
龙友华
胡安龙
WU Shuai;LI Rong-yu;ZHAO Qi-jun;WU Xiao-mao;YIN Xian-hui;LONG You-hua;HU An-long(Department of Plant Protection,Agricultural College,Guizhou University,Guiyang,Guizhou 550025,China;The Provincial Key Laboratory for Agricultural Pest Management in Mountainous Region,Guizhou University,Guiyang,Guizhou 550025,China;Agricultural College,Guizhou University,Guiyang,Guizhou 550025,China)
出处
《山地农业生物学报》
2018年第4期41-44,共4页
Journal of Mountain Agriculture and Biology
基金
贵州省优秀青年科技人才基金(黔科合平台人才[2017]5616)
贵州省烟草专卖局科技专项(201414)
贵州省科技支撑计划项目(黔科合支撑[2016]2534)
贵州省科技计划项目(黔科合基础[2017]1038)
贵州大学引进人才科研项目(贵大人基合字(2015)07号)
大学生创新创业训练计划项目(贵大(省)创字2016(026))
关键词
烟蚜
杀虫剂
毒力测定
Myzus persicae
insecticides
toxicity determination
