用低剂量六六六杀灭幼虫来节省药物并防止鱼类中毒及避免损害农作物,我所于59年初,经实验证明每平方公尺水面用6%丙体可湿性六六六0.5公分,作水剂喷洒或作木屑草包投放效果良好,对杀灭幼虫速度强度及保持无幼虫无蛹期天数,均不亚于每平方公尺用1—2公分剂量,能节省药50%—75%,一年来已不断应用(观察报告见云南医学杂志1959年3期)。为了改进方法,使低剂量效果更好,节省喷洒器材,适合农村大 Using low doses of hexacosalone to kill larvae to save drugs and prevent fish poisoning and avoid damaging crops, we conducted experiments in early 59 to prove that water per square meter could be 6,656.5 cm Spraying water or spraying wood pellets for good effect, to kill the speed of larvae and no larvae to maintain the number of days without pupation, no less than 1-2 cm per square meter dose can save 50% -75% of the drug, Over the past year has been continuously applied (see the report of Yunnan Medical Journal 1959 3). In order to improve the method, the effect of low dose is better, and the spraying equipment is saved, which is suitable for large rural areas