The results of the identification of virusesinfecting 4 genus of orchids – Cymbidium spp.,Odontoglossum spp., Vanda spp. and Laelia spp. Onthe basis of biological, morphological and antigenicproperties found that Cymbidium spp. and Vandaspp. infected Odontoglossum ringspot virus fromgenus Tobamovirus family Virgaviridae, andOdontoglossum spp. and Laelia spp. – infected byCymbidium mosaic virus from genus Potexvirusfamily Flexiviridae. Shows the harmfulness of viraldiseases to plants of the family Orchidaceae.Recommendations for prevention and protection oforchids from viruses.

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