卡死克5DC不同施药方式防治草地东亚飞蝗效果评价

Evaluation of the Efficacy of the Different Way of Applying Cascade 5DC in Control of Oriental Migratory Locust

对卡死克 5 DC不同施药方式的防蝗效果进行了评价。田间试验表明 ,采用卡死克 5 DC8～ 1 0 m L/6 6 7m2进行超低容量喷雾具有较好的防蝗效果 ,一周可达80 %以上 ,并持续上升至第 2 1天 ,药效维持在 95 %左右 ;毒饵法处理防蝗效果较差 ,采用 1 0 m L/6 6 7m2 处理药后第 2 1天才达到最佳防效 80 .94% 。

We made the different usage of cascade 5DC to evaluate the control of oriental migratory locust.The results of field trials showed that it was the better efficacy of using the ultra low volume spraying than the poison baiting.The efficacy of control of the ultra low volume spraying was over 80% and rose continuously,until 95% after 21 days using 8～10 mL/667 m 2 of cascade 5DC,the efficacy of control of poison baiting was only 80.94% after 21 days using 10 mL/667 m 2 of cascade 5DC,but the usage could be tried to use under the condition of low sparse vegetation.