The results showed that the ovipara of pea aphid in Lanzhou area were wingless, while males were winged.

结果表明：兰州地区豌豆蚜性雌蚜均为无翅型，而雄蚜均为有翅型。

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Then at 8L:16D photoperiod, no male was produced and percent ovipara was highest (90.76%) in the 3rd generation.

在8L：16D光周期条件下，无雄蚜分化，而性雌蚜比例最高（90.76%）。

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Then at 8L:16D photoperiod, no male was produced and percent ovipara was highest (90.76%) in the 3rd generation.

在8L：16D光周期条件下，无雄蚜分化，而性雌蚜比例最高（90.76%）。

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