近2年,山东省滨州市许多棉农反映棉花生长不旺、迟滞,甚至死苗。检查棉农送来的棉苗,根部病害并不严重,但须根很少,根尖或主根韧皮部坏死。通过实地调查,发现是棉花根蚜为害所致。笔者对其形态特征、为害状及发生特点进行了初步观察,并对近年来棉根蚜发生为害趋重原因做了简要 In the recent two years, many farmers in Binzhou City, Shandong Province, reported that cotton growth is sluggish, sluggish and even dead. Cotton plants sent to check the cotton seedlings, the root disease is not serious, but few fibrous roots, apical or root phloem necrosis. Through the field investigation, it was found that the damage caused by the cotton root aphid. The author of its morphological characteristics, damage and the occurrence of a preliminary observation, and in recent years, the root causes of cotton aphid tended to do a brief reason