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1974年FAO介绍了关于农业害虫抗药性测定的一系列方法。通过实践,我们认为,室内害虫毒力测定,点滴法较其它方法用药量小、需供试害虫数量少、可重复性强、能精确测出每头供试害虫所受的农药剂量,求出LD_50值和LD_95值。 点滴法使用的点滴器类型较多,不锈钢针头微量点滴器是我们在中国科学院动物所创制的基础上,进行了一些改进,兹介绍如下: 一、不锈钢针头微量点滴器的制作 将不锈钢毛细管按要求截成长短不同规
In 1974 FAO introduced a series of methods for determining the resistance of agricultural pests. Through practice, we believe that indoor pest toxicity determination, spotting method is less than other methods, the number of pests to be tested is small, the repeatability is strong, the pesticide dosage for each pest tested can be accurately measured, and the LD_50 value and LD_95 value. Drip method using more types of dropper, stainless steel needle micro-droplet is created in the Chinese Academy of Sciences based on the animal, made some improvements, it is introduced as follows: First, the production of stainless steel needle micro-dropper Stainless steel capillary on request Cut into different lengths and short rules