灭鼠前后的鼠密度调查,是评价灭鼠效果的一种常用方法。部队既往多采用鼠夹法和食饵消耗法进行家鼠密度的调查,此方法实施较为繁琐。近些年来,有些单位采用粉板法(如9、12、100、400格粉板法)间接地进行家鼠密度调查来作灭鼠效果评价。格粉板法使用简单,结果较为准确,但用板量 Investigation of rat density before and after rodent control is a common method of evaluating rodent control effects. In the past, the army used the mouse clamp method and the bait consumption method to conduct the investigation of the density of domestic mice, and the implementation of this method is rather cumbersome. In recent years, some units have used powder board method (such as 9, 12, 100, and 400-grid powder method) to indirectly conduct house-mouse density survey to evaluate the anti-rat effect. Grid powder method is simple to use, the result is more accurate, but the amount of board