8%噻呋酰胺·嘧菌酯GG防治水稻纹枯病的田间药效试验研究  

Field Efficacy Test of Thifluzamide·azoxystrobin 8%GG against Rice Sheath Blight

作　　者：姜海平[1] 蔡超[1] 管信山 朱一博[1] 潘丹丹 JIANG Hai-ping;CAI Chao;GUAN Xin-shan;ZHU Yi-bo;PAN Dan-dan(Rudong Plant Protection and Quarantine Station,Rudong 226400,China)

机构地区：[1]江苏省如东县植保植检站,江苏如东226400

出　　处：《南通职业大学学报》2019年第4期91-93,共3页Journal of Nantong Vocational University

基　　金：国家重点研发计划“长江中下游水稻化肥农药减施增效技术集成研究与示范”项目(2016YFD0200800);江苏现代农业(水稻)产业技术体系绿色防控创新团队项目(JATS[2018]205)。

摘　　要：为验证8%噻呋酰胺·嘧菌酯GG对水稻纹枯病的田间防治效果,在水稻移栽后7~10 d用药1次,将装有8%噻呋酰胺·嘧菌酯GG的水溶袋沿田埂均匀抛施于稻田水面,勿需下田喷施,进行田间药效试验。试验观测到,在8%噻呋酰胺·嘧菌酯GG的用量分别为400、300、200 g/(667 m2)时,防效分别稳定在85%、80%、70%以上,比常规田见病期推迟10 d左右,比大田减少2次用药,水稻生长正常,其经济有效剂量以300 g(667 m2)为宜。试验结果表明:随着用药量增加,8%噻呋酰胺·嘧菌酯GG对水稻纹枯病的防效也显著提高;噻呋酰胺·嘧菌酯GG用于早期预防,对水稻纹枯病防效好、持效期长、安全性好,省药、省工、省力,且治防兼备,可在生产中示范推广。In order to test the control effects of thifluzamide·azoxystrobin 8%GG against rice sheath blight,the solvable bag including the above-mentioned pesticide is evenly thrown along the ridge on the water surface of the rice field after rice transplanting 7-10 d.The field efficacy test is carried out without involving people stepping into the rice field.It is observed from the experiments that the control effects are more than 85%,80%,70%with corresponding dosages 400,300,200 g/(667 m2).The emergence of rice sheath blight is 10 d later than CK and the control frequency is less than CK 2 times.The proper economical dosage is 300 g/(667 m2).The experiment results show that if thifluzamide·azoxystrobin 8%GG is used for the early prevention,the effect is good,sustainable,safe with less time and labor.It is effective for the prevention and treatment and can be used widely in production.

关 键 词：水稻纹枯病 8%噻呋酰胺·嘧菌酯GG 田间药效试验 防治效果 

分 类 号：S435[农业科学—农业昆虫与害虫防治]