摘要
为筛选出有效防治稻纵卷叶螟的新农药,采用24%氰氟虫腙SC对稻纵卷叶螟的防治效果进行了小区试验和大区示范,结果表明:24%氰氟虫腙SC对稻纵卷叶螟3龄以下幼虫有较好的防治效果,24%氰氟虫腙SC 30 mL/667m2+有机硅10 mL/667m2,在小区试验和大区示范药后4 d的防治效果分别为81.71%和80.47%,药后10 d的防治效果分别为88.36%和87.71%;24%氰氟虫腙SC 35 mL/667m2+有机硅10 mL/667m2在小区试验和大区示范药后4 d的防治效果分别为87.49%和87.57%,药后10 d的防治效果分别为93.03%和93.60%,保叶效果为92.55%。本次试验示范各处理中对水稻无药害,对天敌杀伤小,24%氰氟虫腙SC适宜在当地生产推广应用。
24% cyanide-fluoro-hydrazone SC was used in the plot and large-area demonstration field experiments to study its effect of controlling rice leaf roller. The results showed that 24% cyanide-fluoro- hydrazone SC had the better effect of controlling rice leaf roller larvae before third instar, the control effects in the plots and large-area demonstration field were 81.71% and 80.47% in 4d,88.36% and 87. 71% 10 d after applying 30 mL/667m^2 24% cyanide-fluoro-hydrazone SC ＋10 mL/667m^2 organic silicon respectively, and the control effect in the plots and large-area demonstration field was 87. 49% and 87.57% in 4d,93.03% and 93.60% in 10 d after applying 35 mL/667m^2 24% cyanide-fluoro-hydrazone SC＋10 mL/667m^2 organic silicon respectively. Therefore, 24% cyanide-fluoro-hydrazone SC without harm to rice and natural enemy should be popularized in local rice cultivation.
出处
《贵州农业科学》
CAS
北大核心
2010年第4期117-120,共4页
Guizhou Agricultural Sciences
基金
贵州省植保植检站项目"贵州无公害新农药引进试验示范推广"内容之一[黔农植(2009)13]
关键词
稻纵卷叶螟
氰氟虫腙
试验
示范
防治效果
rice leaf roller
cyanide-fluoro-hydrazone SC
test
demonstration
control effect
