PROBLEMS AND PREVALENCE OF GRAPEVINE LEAFROLL ASSOCIATED VIRUS

The grapevine leafroll-associated virus is currently one of the most dangerous phytopathological diseases of grapevine culture, it is listed to the list of quarantine diseases of the EU and Russia. The article deals with the problems of the spread of the grapevine leafroll-associated virus in Russia and in the world, its biodiversity in different countries and ways of control are considered. Statistics on the damage caused by this phytopathological disease to medium and large wineries are given. Special attention is paid to the importance of early identification of the grapevine leafroll-associated virus in order to prevent its further spread and to the most important link in RT-PCR, the isolation of the virus RNA from plant material.