Zhu, Y.C.; Greenstone, M.H. 1999, Polymerase chain reaction techniques for distinguishing three species and two strains of Aphelinus (Hymenoptera: Aphelinidae) from Diuraphis noxia and Schizaphis graminum (Homoptera: Aphididae). Annals of the Entomological Society of America
92(1):71-79
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Keywords: Biological control
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