Tungro disease of rice management
Distribution of Tungro disease of rice
Tungro is the most serious viral disease of rice in south and south-east Asia from Pakistan to the Philippines.
Virus & vector of Tungro disease of rice
Tungro ( Yellow-orange) is the result of concurrent infection by two viruses, the single stranded RNA virus, rice tungro spherical waika virus ( RTBV) and the double stranded RNA virus. Rice tungro Baciliform badnavirus ( RTBV). Both viruses are transmitted by several leaf hoppers, particularly. Nephotettix viruscns in the semi-persistent manner.
Symptoms of Tungro disease of rice
Tungro infected rice plants are stunted and show mottling and yellow orange discoloration of the leaves. The typical tungro symptoms can be caused by RTBV, but they are intensified by the presence of RTSV. RTSV often occurs along but causes only very mild symptoms. The disease caused by RTSV along was earlier known as rice waika disease and the virus was rice waika virus.
Control measure of Tungro disease of rice
Control of waika virus depends on the use of virus or vector resistant or virus tolerant varieties.