APHID DISSEMINATION OF STRAWBERRY VIRUSES IN NOVA SCOTIA

Abstract

In Nova Scotia, strawberry virus disease symptoms appeared in 12% of the Fragaria vesca L. (EMC) plants present in faunal study plots planted in 1961 and in 14% in plots planted in 1962.Latent-C virus and mottle virus were the dominant diseases and were present in approximately equal numbers of the indicator plants. A smaller number of indicator planes were dwarfed but otherwise free of symptoms associated with previously described virus diseases.Known vectors present in the plots included Rhodobium porosum (Sanderson), Myzus persicae (Sulz.), Aulacorthum solani (Kalt.), Amphorophura rubi (Kalt.), and Pentatrichopus minor (Forbes). R. porosum was the dominant species.