红蜘蛛的发生与干燥气候有关,气候愈干燥,种群增长愈快,危害愈烈.河西走廊属干旱荒漠气候,大气干燥,年均相对湿度45%～50%.受此影响,红蜘蛛的发生与危害十分突出,对红蜘蛛的防治始终是果树病虫害防治的重要任务.本文就5种药剂对红蜘蛛的防治效果作了对比试验.1 材料与方法 试验 The occurrence of spider mite is related to dry climate, the climate is more dry, the population grows faster, the more dangerous.The Hexi Corridor is arid and desert climate, the atmosphere is dry, with an average annual relative humidity of 45% to 50% .Therefore, the occurrence of spider mite And harm is very prominent, the prevention and treatment of red spider is always an important task of pest control of fruit trees.In this paper, five agents on the control effect of spider mite made a comparative test.1 Materials and Methods