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对发生苹果绵蚜的果园进行了广泛调查。自然传播是发生区内绵蚜传播蔓延的主要方式,传播范围为1～5km。其寄主广泛。果园管理粗放,加之防治不力,会导致猖獗为害,为害损失率为4.70％～29.31％。
An extensive investigation of the orchard where apple aphid occurred occurred. Natural transmission is the main mode of spread and spread of cotton aphids in the area, spreading in the range of 1 ~ 5km. Its host wide. Extensive orchards management, combined with poor control, will lead to rampant damage, damage loss rate of 4.70% ~ 29.31%.