Twelve perennial small grain cultivars were examined for eight characteristics favorable to management of greenbug, Schizaphis graminum (Rondani). A greenbug-susceptible variety of hard red winter wheat, Triticum aestivum L., and a greenbug-resistant hard red winter wheat variety were used as checks. Eight of the 12 perennial small grain cultivars (including X Triticosecale spp. / Thinopyrum intermedium // X Triticosecale spp., X Triticosecale spp. / Thinopyrum ponticum // X Triticosecale spp., Thinopyrum ponticum / Triticum aestivum var. Eltan, X Agrotriticum spp. (PI550715) / Tripsacum dactyloides var. Spitzer, and Hordeum vulgare var. MT2 / Tripsacum dactyloides var. Spitzer) had at least one favorable greenbug management characteristic. Cultivars that included X Triticosecale spp. and either Thinopyrum intermedium (Host) Barkworth & D.R. Dewey or T. ponticum wheatgrass in their genetic background had the most favorable characteristics.
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1 March 2014
Susceptibility of Selected Perennial Small Grain Cultivars, to Greenbug, Schizaphis graminum (Rondani) (Hemiptera: Aphididae)
G. J. Michels Jr.,
E. N. Jones,
C. M. Rush
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Southwestern Entomologist
Vol. 39 • No. 1
March 2014
Vol. 39 • No. 1
March 2014