Study on control efficacies of flubendiamide on rice leaf-roller | 氟虫双酰胺防治水稻稻纵卷叶螟研究
2013
Tang Tao, Hunan Plant Protection Institute, Changsha (China) | Liu Ducai, Hunan Plant Protection Institute, Changsha (China) | Liu Xueyuan, Hunan Plant Protection Institute, Changsha (China)
chinois. 2010和2012年，采用田间小区试验分别探索了氟虫双酰胺种子包衣处理、喷雾处理对水稻稻纵卷叶螟的实际防治效果。2010年试验结果表明，24%氟虫双酰胺水分散粒剂种子包衣处理对稻纵卷叶螟的控制作用较好，且持效期长。2012年试验结果表明，氟虫双酰胺不同剂型（20%悬浮剂、20%水分散粒剂）喷雾处理能有效防控该害虫危害，且持效性长达28d，药后7-28d卷叶防治效果分别为75.72%-97.21%、79.71%-97.43%；同时，该药剂对稻纵卷叶螟低龄及高龄幼虫的杀灭效果高，药后7-21d防治效果大于92%。
Afficher plus [+] Moins [-]anglais. Field plot experiments were conducted to investigate control efficacies of flubendiamide with coating treatment of seed and spraying treatment on the rice leaf-roller, Cnaphalocrocis medinalis in 2010 and 2012, respectively. The results showed that high control efficacy against C. medinalis and excellent residual effect could be achieved with coating treatment of seed by 24% flubendiamide WG in 2010. C. medinalis was obviously controlled by 20% flubendiamide SC and 20% flubendiamide WG within 28 days after spraying treatment in 2012, and the control efficacies of leaf rolling were 75.72% - 97.21% and 79.71% - 97.43%, respectively, at 7 - 28 days after spraying treatment. Both young and old larvae of C. medinalis were effectively controlled by the above two formulations, and control efficacies were over 92% at 7 - 21 days after spraying treatment.
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