禾缢管蚜、麦长管蚜、麦二叉蚜和玉米蚜一直被认为是扬州郊区小麦上的主要蚜虫,它们发生危害的高峰期以及控制时间一般在5月下旬,而对于它们的越冬虫态及场所众说不一。所以,我们于1987～1989年对该类害虫进行了较为详细的调查研究,发现了一些新的特点: 一、麦蚜种类将三年调查的整个小麦生育期的5107头有翅蚜通过形态观察和染色体组型分析,结果表明:扬州郊区的麦蚜主要是禾缢管蚜,共计4436头,占86.86％,其次是麦 Grasshoppers, wheat aphids, wheat aphids and corn aphids have been considered the main aphids on the outskirts of Yangzhou, the peak of their occurrence and control of the time usually in late May, and their overwintering pests Different states and places. Therefore, we conducted a more detailed investigation and study of this group of pests in 1987 ~ 1989 and found some new features: First, the species of wheat aphids The 5107-headed aphids that were surveyed throughout the three years were observed through morphological observation The results showed that the wheat aphids in the suburbs of Yangzhou were mainly Aphis gossypii, accounting for 4436, accounting for 86.86%, followed by wheat