Author
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BURD, JOHN |
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Submitted to: International Plant Protection Congress
Publication Type: Abstract Only Publication Acceptance Date: 3/1/2004 Publication Date: 5/13/2004 Citation: Burd, J.D. 2004. Release and establishment of exotic parasitoids to control an invasive aphid (Diuraphis noxia) [abstract]. In: Proceedings of the 15th International Plant Protection Congress, May 11-16, 2004, Beijing, China. p. 133. Interpretive Summary: Technical Abstract: From 1991 through 1993 exotic parasitoids of the Russian wheat aphid, Diuraphis noxia (Mordvilko), were imported from its reputed aboriginal home of Eurasia and introduced into eastern Colorado in an attempt to establish natural enemies for biological control in small grain agroecosystems. Seven species, Aphelinus albipodus Hayat and Fatima, Aphelinus asychis Walker, Aphelinus varipes (Forester), Aphidius colemani (Viereck), Aphidius matricariae Haliday, Diaeretiella rapae (M'Intosh), and Ephedrus plagiator (Ness), were released into aphid-infested what fields. Three years later, three aphelinid species, A. albipodus, A. asychis, and A. varipes, and a putative Chinese strain of D. rapae, have become established over six state regions. A. albipodus, A. varipes, and D. rapae were recovered from greenbugs, Schizaphis graminum (Rondani), on sorghum, Sorghum bicolor (L.) Moench. A. albipodus and D. rapae successfully parasitized D. noxia on several non-cultivated grasses that serve as oversummering hosts. |
