Abstract

SUMMARYCucumber mosaic virus (CMV) was obtained from five stunted American wineberry (Rubus phoenicolasius Maxim.) plants with leaves showing yellow blotching and line pattern symptoms but not from seven symptomless plants. The virus was readily transmitted to other wineberry plants by grafting, but not to several cultivars of R. idaeus L. either by grafting, mechanical inoculation with, purified preparations, or by aphids (Macrosiphum euphorbiae (Thos.)). The isolate was indistinguishable serologically and in its behaviour in vitro from strain W, originally obtained from lettuce in England.

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