哒嗪·茚虫威对水稻纵卷叶螟的室内毒力测定与田间防效  

Indoor Toxicity and Field Control Effect of Pyridaphenthion·Indoxacarb on Rice Leaf Roller

作　　者：吉沐祥[1] 包成友 陈洪星[2] 吴祥[1] 华继军[2] 张平[2] 庄桂花[1] 陈源[1] 

机构地区：[1]江苏丘陵地区镇江农业科学研究所,江苏镇江212400 [2]江苏省宝应县范水镇农技推广服务中心,江苏宝应225800

出　　处：《江西农业学报》2011年第5期85-87,共3页Acta Agriculturae Jiangxi

基　　金：镇江市企事业单位知识产权战略推进项目(NY2007043)

摘　　要：经室内毒力测定,茚虫威与哒嗪硫磷以1∶20复配对防治稻纵卷叶螟具有较高的毒力,其LC50为1.26 mg/L,共毒系数为217.28,增效显著。田间试验结果表明:21%哒嗪.茚虫威WP对稻纵卷叶螟具有较好速效性与持效性,杀虫效果和保叶效果均优于20%哒嗪硫磷EC,也高于或相近于15%茚虫威SC(安打),但成本明显低于15%茚虫威SC(安打)。适宜用量为1200~1500 g/hm2。The results of indoor toxicity tests showed that Pyridaphenthion·Indoxacarb(Indoxacarb∶Pyridaphenthion = 1∶20) had a high toxicity to rice leaf roller(Cnaphalocrocis medinalis),its LC50was 1.26 mg/L,and its co-toxicity coefficient was 217.28,indicating significant synergism.The results of field control tests showed that 21% Pyridaphenthion·Indoxacarb WP had rapidly available and persistent effect to rice leaf roller,its insecticidal effect and leaf-protecting effect were better than those of 20% Pyridaphent...

关 键 词：哒嗪.茚虫威 稻纵卷叶螟 毒力测定 田间防效 

分 类 号：S435.112.1[农业科学—农业昆虫与害虫防治]