麦长管蚜和麦二叉蚜在武威地区混合发生,均以卵在冬麦田内越冬。 冬麦田约占99.15％,杂草上极少,玉米茬、糜茬、谷茬上均未发现。 在冬麦田内如前茬为麦茬的,越冬蚜卵以残留麦茬上最多(一般在麦茬内壁),其次是土块,杂 Wheat aphid and wheat aphids were mixed in the Wuwei area, all over the winter with winter eggs in the winter wheat fields. Winter wheat fields account for about 99.15%, very few weeds, corn stubble, mizi, stubble were not found. In the winter wheat fields, such as the former crop of wheat stubble, wintering aphids eggs to the most residual wheat stubble (usually in the inner stubble), followed by soil block, miscellaneous