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1杀虫剂毒力测定方法杀虫剂的毒力测定共有四种方法:喷雾法,液浸法,药膜法,点滴法。1.1喷雾法模拟林间实际防治情况设计的喷雾方法。为了减少试验误差,使每个供试昆虫尽量接受相同的药量,要求喷雾器有一定的压力,使雾点大小一致,喷雾均匀。1.2液浸法将供试昆虫分别放入不同浓度的稀释药液中浸一下,立即取出,放在吸水纸上吸去过多的药液,移入每组盛器中,给以新鲜叶片作饲料,盛器上加盖纱布或纱
A pesticide toxicity determination method The toxicity of pesticides determination of the total of four methods: spray method, liquid immersion method, membrane method, drip method. 1.1 Spray method to simulate the actual prevention and treatment of forest design spray method. In order to reduce the test error so that each test insect try to accept the same dose, the sprayer requires a certain pressure, the fog point size, spray evenly. 1.2 liquid immersion test insects were placed in different concentrations of diluted liquid immersion, immediately remove the absorbent paper on the suction too much liquid, into each container, to give fresh leaves for feed, Staple gauze or yarn on the container