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Rice Tungro Virus (RTV) is a destructive disease of rice. Incidence of RTV in India was first observed at West Bengal in 1966 and two years later, appeared extensively in eastern Uttar Pradesh and northern Bihar inflicting heavy crop losses. Subsequently, RTV has been observed occasionally in parts of Andhra Pradesh, Assam, Bihar, Kerala, Pondichery, Tamil Nadu, Uttar Pradesh and West Bengal. In Andhra Pradesh, incidence of RTV has been recorded often at low to moderate severity since 1976. However, the disease appeared on epidemic scale causing extensive damage to the crop in 1983 and again in 1990. The incidence was largely in coastal districts.
Directorate of Rice Research, Hyderabad