几种药剂对水稻灰飞虱及条纹叶枯病的田间防治效果  

Control Efficacy of Different Pesticides Against Laodelphax striatellus and Stripe Virus Disease of Rice

作　　者：王奎萍[1] 刘苏闽[1] 

机构地区：[1]扬州市职业大学园林园艺学院,江苏扬州225009

出　　处：《贵州农业科学》2013年第12期97-100,共4页Guizhou Agricultural Sciences

摘　　要：为探讨抗病毒剂毒氟磷与杀虫剂吡蚜酮·噻虫嗪混合使用对水稻条纹叶枯病的防治效果，进行了25％吡蚜酮·噻虫嗪SC和30％毒氟磷（病毒星）wP的单独与混和使用对水稻灰飞虱及水稻条纹叶枯病的防效试验。结果表明：吡蚜酮·噻虫嗪单用或与毒氟磷混用对秧田灰飞虱成虫和水稻条纹叶枯病均具有较好的控制效果，在灰飞虱大发生年份，秧田第4次药后7d防效为78％～89．50％，对水稻条纹叶枯病防效为70％～78．94％，以25％吡蚜酮·噻虫嗪SC525mL＋30％毒氟磷wP990g混合使用的效果较佳。Field experiments were conducted to control rice stripe virus disease and L. striatellus with different pesticides of 25% Pymetrozine . thiamethoxam SC,25% Pymetrozine .thiamethoxam SCq-30% Dufulin WP, 30%Dufulin WP. The results showed that Pymetrozine .thiamethoxam SC, the pesticide mixture of Pymetrozine . thiamethoxam SC and Dufulin WP, could provide good effects against L. striatellus adults. In the years of outbreaks of L. striatellus, the control efficacy was 78～89.50%＇oo at the seventh days after the fourth use of the pesticides; The control efficacy to rice stripe virus disease was 70%～78.94% 25% Pymetrozine ＊ thiamethoxam SCq-30 % Dufulin WP 990 g could provide good effects against stripe virus disease.

关 键 词：吡蚜酮·噻虫嗪 毒氟磷 灰飞虱 水稻条纹叶枯病 防效 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]