4种药剂及其混配组合对甘薯地下害虫的田间防效  

Control effect of four pesticides and their mixture on underground pest of sweetpotato

作　　者：兰孟焦[1] 吴问胜[1] 肖满秋 潘皓[1] 侯隆英[1] 葛瑞华 LAN Mengjiao;WU Wensheng;XIAO Manqiu;PAN Hao;HOU Longying;GE Ruihua(Crop Institute of Jiangxi Academy of Agricultural Sciences,Nanchang330200,China)

机构地区：[1]江西省农业科学院作物研究所,南昌330200

出　　处：《植物保护》2022年第2期283-288,共6页Plant Protection

基　　金：国家甘薯产业技术体系建设项目(CARS-10-C8);中央引导地方科技创新专项(20192ZDF04022);江西现代农业科研协同创新项目(JXXTCX201704)。

摘　　要：地下害虫是甘薯生产中的重要害虫,近年来其发生程度日趋严重。为有效防治甘薯地下害虫,筛选高效低毒的杀虫剂,使用4种药剂及其混配组合在江西南昌、余江进行了田间药效试验。结果表明,4种药剂及其混配组合防治甘薯地下害虫均有效,其中10%噻虫嗪微囊悬浮剂(15.0 kg/hm^(2))、30%辛硫磷微囊悬浮剂+10%噻虫嗪微囊悬浮剂(15.0 kg/hm^(2)+15.0 kg/hm^(2))、30%辛硫磷微囊悬浮剂+10%噻虫嗪微囊悬浮剂(15.0 kg/hm^(2)+7.5 kg/hm^(2))的防效较好,7%高效氯氟氰菊酯乳油(0.15 kg/hm^(2))和5%毒死蜱颗粒剂(90.0 kg/hm^(2))防效较差。综合考虑虫咬率、虫情指数、防治效果、商品率和鲜食产量5个指标,30%辛硫磷微囊悬浮剂+10%噻虫嗪微囊悬浮剂(15.0 kg/hm^(2)+7.5 kg/hm^(2))可有效防治甘薯地下害虫,对作物安全,增产效果明显,可进一步试验示范和推广使用。Underground pests are important pests in sweetpotato production.Their occurrence is becoming more and more serious in recent years.In order to screen out the pesticides with high efficacy and low toxicity for underground pests control,four pesticides and their mixture were chosen to determine their control effects in sweetpotato fields with heavy damage.The results revealed that four pesticides and their mixture were effective against underground pests.Treatments of thiamethoxam 10%CS(15.0 kg/hm^(2)),phoxim 30%CS+thiamethoxam 10%CS(15.0 kg/hm^(2)+15 kg/hm^(2))and phoxim 30%CS+thiamethoxam 10%CS(15.0 kg/hm^(2)+7.5 kg/hm^(2))had the higher control effect,while the treatments of lambda-cyhalothrin 7%EC(0.15 kg/hm^(2))and chlorpyrifos 5%GR(90.0 kg/hm^(2))had lower control effect.Considering the five indices of pest-biting rate,pest damage index,control effect,commodity rate and fresh root yield,phoxim 30%CS+thiamethoxam 10%CS(15.0 kg/hm^(2)+7.5 kg/hm^(2))were recommended for demonstration and popularize,due to their good control effect on underground pests of sweetpotato,safety to crops and obvious effect on yield increase.

关 键 词：甘薯 地下害虫 药剂 防治效果 

分 类 号：S435.315[农业科学—农业昆虫与害虫防治]