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The virus was isolated from naturally infected sugar beet plants and identified as BtMV according to symptomatology, host range, and modes of transmission, electron microscopy and immunological and molecular detection. Host range studies revealed that, BtMV infected 28 plant species belonging to 6 families. BtMV was not easily sap transmitted, not transmitted through seeds but was readily transmitted by Myzus persicae Sulz. and Aphis fabae Scorp. The electron microscope preparations revealedfatcat:vvk2glerbjgs3j6bf656lth7fm