20%呋虫胺SG防治棉盲蝽象田间药效试验  

efficacy trial of Dinotefuran 20% sg prevent Lygus lucorum Meyer-dür in fields

作　　者：刘效明 章炳旺[2] 吴习水 曾斌 钟直琳 

机构地区：[1]安徽省宿松县复兴镇农业技术推广站,安徽安庆246531 [2]安庆市植物检疫植物保护站,安徽安庆246003 [3]宿松县棉花病虫测报站,安徽安庆246531 [4]广州统联住商农药有限公司,广州510000

出　　处：《农药》2011年第9期695-696,共2页Agrochemicals

摘　　要：【目的】为明确20％呋虫胺SG对棉盲蝽象的防治效果，开展了该药的田间药效试验。【结果】20％呋虫胺SG450、300、225、150g a．i．／hm^2和50％马拉硫磷EC750mL a．i．／hm^2对棉盲蝽象的防效，药后1d依次为100％、80％、81．82％、75％和50％，药后3d的防效依次为100％、100％、94．29％、80．25％和46．45％；药后7d的防效依次为100％、95．15％、95％、80．11％和41．86％。【结论】20％呋虫胺SG防治棉盲蝽象具有速效、持效且对棉花安全的特点，是防治棉盲蝽象理想药剂。在中等偏轻发生年份用量为150—225ga．i．／hm^2，在中等以上发生程度年份用量为225-300ga．i．／hm^2。[Aims] The field efficacy trial of dinotefuran 20% SG was conducted to confirm the control effect on Lygus lucorum Meyer-dur. [Results] The results showed that the efficacy of dinotefuran 20% SG at 450, 300, 225, 150 g a.i./ha and malathion 50% EC at 750 mL a.i./ha were 100, 80, 81.82, 75 and 50% respectively against L. lucorum Meyer-dur on the first day after treatment, the efficacy were 100, 100, 94.29, 80.25 and 46.45% on the third day, and 100, 95.15, 95, 80.11 and 41.86% on the seventh day. [Conclusions] Dinotefuran 50% SG has advantages of readily availability, persistence and safety on cotton, which is an ideal pesticide in protecting cotton from L. lucorum Meyer-dur, the usage is 150-225 g a.i./ha in medium to light years, while 225-300 g a.i./ha in medium to large years

关 键 词：20%呋虫胺SG 棉盲蝽象 防效 

分 类 号：S435.622[农业科学—农业昆虫与害虫防治]