浙西北主迁入代稻纵卷叶螟药剂防控效果研究  

Control Effect of Different Insecticides on Main Immigration Generation of Rice Leaf Roller,Cnaphalocrocis medinalis (Guenee) in Northwest Zhejiang

作　　者：赵敏[1] 徐福寿 张国忠[1] 李荣[1] 吴传伟[1] 倪中应 谢国雄 

机构地区：[1]浙江省桐庐县农业技术推广中心,浙江桐庐311500 [2]浙江省杭州市植保土肥总站

出　　处：《作物杂志》2008年第5期74-77,共4页Crops

基　　金：杭州市农业丰收计划项目(2007F1-7,2008F1-3)

摘　　要：12种药剂防治迁入代稻纵卷叶螟试验的结果表明,用药后5d,对稻纵卷叶螟幼虫具有较好防治效果的药剂为5%氟虫腈、31%氟虫腈.三唑磷、4%阿维菌素、3%阿维菌素.氟铃脲、48%毒死蜱、15%茚虫威,校正防效分别为83.4%、78.1%、75.6%、70.3%、68.0%、66.9%,其余药剂的防治效果较低,均在60%以下;用药后7d,对单季稻具有较好保叶效果的药剂为阿维菌素、氟虫腈、茚虫威、氟虫腈.三唑磷、阿维菌素.氟铃脲,校正保叶效果分别为59.8%、57.9%、57.9%、56.3%、48.4%;其次为喹硫磷、虫螨腈、稻丰散.三唑磷、稻丰散、毒死蜱、毒.乙酰,校正保叶效果分别为46.5%、43.6%、40.3%、39.6%、36.6%、33.6%;以联苯菊酯为最差,仅16.9%。单季稻以四(2)代迁入稻纵卷叶螟发生量大,虫龄不整齐,在2～3龄幼虫盛发时,宜选用氟虫腈及其混配剂(氟虫腈.三唑磷)、阿维菌素及其混配剂(阿维菌素.氟铃脲),以及茚虫威三类药剂均有较好的杀虫与保叶效果,适期施药1次可控制该代稻纵卷叶螟主迁入峰的发生危害。Control efficacy of twelve kinds of insecticides on main immigration generation of rice leaf roller, Cnaphaloerocis medinalis, on single cropping rice was conducted in the paper. The results showed that these insecticides, including 5% fipronil EC,31% fipronil＂ triazophos EC,4% avermectin EC,3% avermectin, hexaflumuron WP,48% chlorpyrifos EC and 15% indoxacarb SC,had high toxicity to C. medinalis larvae on the 5th day after spraying and their correct control effects was 83.4% ,78. 1% ,75.6% ,70. 3% ,68.0% ,66. 9%, respectively. Control efficacy of other insecticides,including 50% phenthoate EC,40% phenthoate, triazophos EC,25% quinalphos EC, 10% indoxacar EC ,35% chlorpyrifos-acephate WP and 2.5% bifenthrin EC, was less than 60%. On 7th day after spraying, avermeetin,fipronil, indoxacar, fipronil- triazophos, avermectin . hexaflumuron had highest leaf protection effects, and was 59.8% ,57.9% ,57.9% ,56.3 % ,48.4% , respectively. The second order was quinalphos, indoxacar, phenthoate,phenthoate＂ triazophos, chlorfenapyr, chlorpyrifos-acephate, and their correct teat protection efficacy was 46.5%, 43.6% ,40. 3% ,39.6% ,36. 6% ,33.6%, respectively. The lowest leaf protection effect was bifenthrin （ 16. 9% ） . When the occurrence of four（two） generation C. medinalis 2 -3 instar larvae reached the maximum,three kinds of insecticides, e. g. fipronil and its mixtures（ fipronil＂ triazophos）, avermectin and its mixtures（ avermectin .hexaflumuron）, indoxacarb had better control efficacy and leaf protection effect. Main immigration peak of C. medinalis can be controlled after spraying one times

关 键 词：单季稻 稻纵卷叶螟 药剂 防控效果 

分 类 号：S435.112.1[农业科学—农业昆虫与害虫防治] S436.3[农业科学—植物保护]