麦长管蚜是我区小麦上的严重害虫,在测报和防治研究工作中,要制定正确的调查方案,提高抽样技术的有效性,正确估计麦蚜种群数量,必须首先了解麦蚜在麦株空间分布型。为此,作者于1981年和1982年进行了麦长管蚜空间分布型的调查,并对几种常用的随机抽样方法加以比较分析,以期找出较正确的麦蚜田间调查的抽样方法。现将初步研究的结果简述如下: Wheat aphid is a serious pest on wheat in our region. In the research of forecasting and controlling, to develop the correct investigation plan and improve the sampling technique’s validity, to correctly estimate the population of the wheat aphid, we must first understand the wheat aphid in the wheat plant Spatial distribution. Therefore, in 1981 and 1982, the author conducted a survey of the spatial distribution patterns of A. gigas and analyzed several commonly used random sampling methods in order to find a more accurate sampling method for field investigation of wheat aphids. The results of the preliminary study are summarized as follows: