40%福亮悬浮剂及30%度锐悬浮剂防治甘蔗绵蚜田间药效试验

the Field Efficacies of Fortenza Duo 400SC and Durivo 300SC to Control Ceratovacuna Lanigera Zehntner

为探讨40%福亮悬浮剂、30%度锐悬浮剂对甘蔗绵蚜的防治效果及最佳施用方法,作者于2017年在西双版纳州勐海县进行了田间药效评价试验。试验结果表明:福亮、度锐对绵蚜防效优异,施药后123天,防效均在98.81%及以上,不同施药方法之间无显著差异。施药后189天,福亮拌种茎防效略差,福亮450 mL/hm^2的防效为85.76%,福亮750 mL/hm^2的防效为86.11%。福亮、度锐拌沙和拌肥的防效均在91.67%以上。综上,将福亮、度锐拌沙或拌肥,施用剂量为750 mL/hm^2,对甘蔗绵蚜防效最佳。

In order to explore the efficacies and application methods of Fortenza Duo 400SC and Durivo 300SC, a field trial was conducted in Menghai County, Xishuangbanna, in 2017. The results showed that both Fortenza Duo and Durivo had good efficacies on controlling Ceratovacuna lanigera Zehntner. Their control efficacies, 123 days after application, was over 98.81%, and there is no significant difference among different application methods. 189 days after application, the control efficacies of Fortenza Duo 450 mL/hm2 and 750 mL/hm2, by method of spraying seeds, were 85.76% and 86.11%, respectively. Fortenza Duo 400SC and Durivo 300SC delivered better control efficacies which were above 91.67% by mixing with both fertilizer and sand. In summary, 750 mL/hm2 is an appropriate dosage to choose for Fortenza Duo. The method of mixing with sand or fertilizer is recommended when use Fortenza Duo 400SC and Durivo 300SC to control Ceratovacuna lanigera Zehntner.