槐蚜(Aphis Laburni kalt)和棉蚜(Aphis gossy pii Glover)虽然均属同翅目蚜虫科蚜虫属的昆虫,但其形态大不相同。槐蚜,体灰色或黑色,无翅蚜带白色粉末,有翅蚜且有光泽。而棉蚜则为绿色。其他特征也和棉蚜有显著区别。虽然槐蚜和棉蚜形态不同,但槐蚜能否加害棉花却是农业生产上存在的一个实际问题。很多农民要求砍去在棉田附近的槐树,认为槐树上集中了密度极大的槐蚜,就是棉花上蚜虫的来源。西北农学院林学系的教师和陕西省农林厅的干部几次征询昆虫学家周 Although both Aphis gossypii and Aphis gossy pigeon are aphids belonging to the family Homoptera aphid, their morphologies are quite different. Sophora japonica, gray or black body, wingless aphids with white powder, winged aphids and shiny. While cotton aphids are green. Other characteristics are also significantly different from cotton aphid. Although the different forms of the locust tree aphids and the cotton aphids, whether the locust tree aphid infects the cotton is a practical problem in agricultural production. Many peasants demanded to cut off the locust trees in the vicinity of the cotton fields. They believed that the locust locusts concentrated on the most dense locust locusts and were the sources of aphids on cotton. Faculty of Forestry Department of Northwest Agricultural College and Shaanxi Provincial Department of Agriculture and Forestry cadres consultants several weeks consultant