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为摸清光肩星天牛种群的动态规律，作者于１９８７—１９８８年，在运城、侯马等地，用检查判断遗留痕迹的方法对该虫的自然种群进行了调查，结果如下：１、得到不同发生年代的杨（榆）树林内的平均虫口密度；２、该虫各虫态的空间分布型呈聚集型，且虫口密度越低，聚集度越高；３、编制了该虫在不同发生区内的生命表及平均生命在；４、经生命表分析得出，一期幼虫（危害韧皮部）为关键虫期，该期内天敌的捕食为关键因子；５、在此基础上建立了回归预测式。
In order to find out the dynamics of the population, the author studied the natural populations of the insect in 1987 to 1988 in Yuncheng and Houma with the method of checking and judging the left traces. The results are as follows: 1, The average population density of Populus euphratica in the forest was 2. The spatial distribution pattern of each insect was aggregated, and the lower the population density was, the higher the aggregation degree.3. Life table and the average life in; 4, the life table analysis shows that a larva (endanger phloem) as the key period, predation of natural enemies during this period as a key factor; 5, based on this established regression predictive formula.