麦二叉蚜只在夏茬燕麦叶部上发现，发生数量不大。
Sch. graminum Ronda's number was very little, only was found on summer stubble oat.
峡部及左右叶实质回声及供血在正常范围。
Isthmus and left and right lobe parenchyma and blood supply in the normal range.
峡部及左右叶实质回声及供血在正常范围。
Isthmus and left and right lobe parenchyma and blood supply in the normal range.
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