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Predisposing factors of Rice Tungro Disease
Factors for the development of Rice Tungro Disease
1. The outbreak of rice tungro disease is the result of several factors like availability of virus source (primary inoculum), presence of host susceptible to both virus and vector, right growth stage of the host, availability of vectors and favourable climatic conditions.
2. Shortage of irrigation water may also promote tungro incidence because farmers are forced to plant asynchronously.
Rice Tungro Virus
1. Rice tungro bacilliform virus (RTBV) is a reverse-transcribing DNA virus which, in association with an RNA virus, Rice tungro spherical virus (RTSV) develops Rice tungro disease.