我省丹江流域是柑橘栽培的北缘地区,近十年来柑橘栽植面积不断扩大。产量逐年上升。据统计,栽植面积已达4万多亩,年产量近50万公斤。随着柑橘生产的迅速发展,柑橘红蜘蛛也在各地橘园普遍发生,造成不同程度的危害。柑橘红蜘蛛又称柑橘叶螨,以成虫、若虫、幼虫群集在叶片、嫩枝及果实上,吸取汁液造成危害,尤以叶片受害最重。在叶片 Danjiang River Basin in our province is the northern margin of citrus cultivation, citrus planting area has been expanding over the past decade. Output increased year by year. According to statistics, the planting area has reached more than 40,000 mu with an annual output of nearly 500,000 kilograms. With the rapid development of citrus production, citrus red spider also occurs in various places in Orangery, resulting in different degrees of harm. Citrus spider mite, also known as citrus spider mite, with adult, nymphs, larvae clustered in leaves, shoots and fruits, draw juice hazards, especially in the hardest hit leaves. In the leaves