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Euphorbia ringspot virus, a new virus in Euphorbia milii X lophogona


, : Euphorbia ringspot virus, a new virus in Euphorbia milii X lophogona. Acta Horticulturae (59): 161-165

Symptoms of the disease, which occurred in W. Germany, included ring shaped chlorotic spots on leaves, leaf and flower deformation, and growth reduction. The disease could be transmitted to the E. hybrid and to a of E. milii by grafting, by Myzus persicae in a nonpersistent manner, and mechanically by cutting, with the same knife, first diseased and then healthy stems. Transmission to 20 herbaceous test plants from 6 families failed.

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