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The Transmission of Pea Seed-Borne Mosaic Virus by Three Aphid Species. Luis C. Gonzalez, Postdoctoral Fellow, University of Wisconsin, Madison 53706; D. J. Hagedorn, Professor of Plant Pathology, University of Wisconsin, Madison 53706. Phytopathology 61:825-828. Accepted for publication 16 February 1971. DOI: 10.1094/Phyto-61-825.

Pea seed-borne mosaic virus was transmitted by Acyrthosiphon pisum, Myzus persicae, and Macrosiphum euphorbiae in a typical stylet-borne manner; i.e., after single-probe acquisition and with very short retention periods. Colonies of M. euphorbiae tended to be more efficient vectors than those of M. persicae, which in turn were often more efficient than A. pisum, but there was some variation among colonies of each species. Alatae were generally more efficient than apterae. When the virus was maintained exclusively by mechanical inoculations, there was a decrease in aphid transmissibility, but the process was reversed after several consecutive aphid inoculations. Pisum sativum, Vicia faba, Vicia villosa, and Lathyrus cicera were equally adequate as inoculum sources for aphid uptake.