More Virulent Offspring Result From Hybridization of Invasive Aphid Species, Diuraphis noxia (Hemiptera: Aphididae), With Diuraphis tritici Endemic to the United States.

Abstract excerpt

The Russian wheat aphid, Diuraphis noxia (Kurdjumov), invaded the United States in 1986 and soon became a significant pest of wheat. Diuraphis tritici (Gillette) is native to the United States and was firmly established on wild grasses before the arrival of Russian wheat aphid. Both species are known to coinfest the same grass hosts, during the time they enter the sexual phase in the fall, mate, and produce...

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