STUDIES OF VIRUS DISEASES OF STRAWBERRIES IN BRITISH COLUMBIA: III. TRANSMISSION OF STRAWBERRY VIRUSES BY APHIDS

Abstract

Eleven aphid species commonly found on rosaceous plants were tested as vectors of eight strawberry viruses. Amphorophora rubi (Kalt.), Aphis rubifolii (Thomas), Aulacorthum solani (Kalt.), Macrosiphum rosae (L.), Myzus ascalonicus Doncaster, M. ornatus Laing, M. persicae (Sulz.), Pentatrichopus fragaefolii (Cock.), P. tetrarhodus (Walk.), and P. thomasi Ris Lambers transmitted the vein banding virus from one or both of two sources. P. fragaefolii, P. tetrarhodus, and P. thomasi transmitted mild mottle, while only P. fragaefolii and P. thomasi transmitted curly-dwarf mottle. M. rosae transmitted vein banding and possibly mild yellow edge. Aphis forbesi Weed failed to transmit any of the viruses tested. None of the species tested transmitted witches’ broom, crinkle, or strawberry latent-A virus.