Properties and Host Range of Turnip Crinkle, Rosette and Yellow Mosaic Viruses

Three isolates of turnip yellow mosaic virus and two other flea‐beetle transmitted viruses, turnip crinkle and turnip rosette, have many similar properties: thermal inactivation end‐point between 80 and 90° C.; dilution end‐point greater than 10‐4; longevity in vitro at about 20° C. at least 30 days. All were transmitted by mechanical inoculation to a wide range of cruciferous host plants, including many weeds. Turnip yellow mosaic virus infected only Reseda odorata outside the Cruciferae, whereas rosette virus infected a few and crinkle virus many non‐cruciferous hosts.