Abstract
A strain of cucumber mosaic virus designated CMV-WB was transmitted mechanically from leaves of winged beans showing chlorotic ring spots and mosaic symptoms to cowpea and other indicator plants. CMV-WB was aphid-transmitted in a nonpersistent manner. Virus purified from infected cowpea was used for antiserum production. CMV-WB was closely related serologically to Price''s yellow strain of CMV and to a cowpea strain of CMV.