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时间:2020-05-04
《乳浆大戟植物杀虫水乳剂对枸杞蚜虫的毒力测定及田间防效-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第53卷第9期农药VO1.53.NO.92014年9月AGRoCHlEMICALSSep.2014刘畅,王芳,张蓉,等.乳浆大戟植物杀虫水乳剂对构杞蚜虫的毒力测定及田间防效[J].农药,2014,53(9):680—682.乳浆大戟植物杀虫水乳剂对枸杞蚜虫的毒力测定及田间防效刘畅,王芳,张蓉,张兴,周一万f1.宁夏农林科学院植物保护研究所,银川750002;2.西北农林科技大学无公害农药研究服务中心,陕西杨凌712100)摘要:旧的】评价新型植物源农药乳浆大戟植物杀虫水乳剂对枸杞蚜虫的室内杀虫活性
2、和田间防治效果。【方法扮别采用浸叶法和常规喷雾法进行室内毒力测定和田间药效试验。【结果】乳浆大戟植物杀虫水乳剂对枸杞蚜虫24h的LC值为0.3977ms/L;在剂量为3000、6000ga.i./hm时,药后1、3,5、7d,防效分别超过了72.0177%、59.9539%、61.9343%、65.0161%。【结论俘L浆大戟植物杀虫水乳剂对枸杞蚜虫表现出很高的毒杀活性和良好的田间防治效果,且对作物和天敌安全。关键词:乳浆大戟;植物源农药;水乳剂;枸杞蚜虫;杀虫活性;田间药效中图分类号:TQ450
3、.9文献标志码:A文章编号:1006—0413(2014)09—0680—03ToxicityDeterminationandFieldEfficacyofBotanicallnsecticidefrOmEuphorbiaesulaLinn.LIUChang’,WANGFang’,ZHANGRong’,ZHANGXing,ZHOUYi-wan(1.InstituteofPlantProtection,NingxiaAcademyofAgriculturalandForestrySciences,Y
4、inchuan750002,China;2.ResearchandDevelopmentCenterofBiorationalPesticide,No~hwestA&FUniversity,Yangling712100,Shaanxi,China)Abstract:【Aims】InordertoprovideascientificreferenceforEuphorbiaesu[afnrtherresearchanddevelopment,theinsecticidalactivityingree
5、nhouseandfieldeficacyofthisnovelbotanicalinsecticideagainstChinesewolfoerryaphidwasinvestigated.【Methods】Leaf-dippingandsprayingmethodswereusedtoevaluatetheinsecticidalactivityandfieldeficacy,respectively.【Results】TheLC50valueofthebotanicalinsecticide
6、againstChinesewolfberryaphidwas0.3977mg/Lat24haftertreatment.Attheapplicationdosageof3000,6000ga.i./ha,theaveragecontroleficaciesweremorethan72.0177,59.9539,61.9343,65.0161%,respectively,at1st,3rd,5thand7thdayaftertreatment.【Conclusions】BotanicalInsec
7、ticidefromEesulaLinn.hasexcellentinsecticidalactivityandfieldcontroleficficyagainstChinesewolfberryaphid,anditissafetobeneficialinsectsandcrops.Keywords:EuphorbiaesulaLinn.;botanicalinsecticide;emulsioninwater(E、;Chinesewolfoerryaphid;insecticidalacti
8、vity;fieldcontroleficacy宁夏具有杀虫活性的植物种类繁多,乳浆大戟杞蚜虫,将采自宁夏中宁枸杞地的枸杞蚜虫接种在温室(EuphorbiaesulaLinn.)是从宁夏众多植物中筛选出的一种枸杞上,2d后去掉接种的蚜虫,选择个体大小和虫态一具有较高杀蚜活性的植物。乳浆大戟是一种有毒的多年生致的无翅成蚜作为试虫。杂草,产于宁夏六盘山、罗山、贺兰山及固原市等地,多生1.1.2供试药剂于干旱山坡、草地或路边。分布于我国东北、华北、华中、西乳浆大戟植物杀虫水乳剂(由宁夏农
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