rice rosette Philippines virus probably rice rosette virus Rice grassy stunt virus (RGSV) is a plant pathogenic virus transmitted by the brown planthopper, Nilaparvata lugens, and two other Nilaparvata species, N. bakeri and N.

[1][2] The virus is found in South and Southeast Asia, China, Japan, and Taiwan.

[4] There was significant crop loss from RGSV in parts of India in 1972–74, 1978, 1981, and 1984.

[5][6] High levels of RGSV were reported in Kyushu, Japan in 1978.

[7] From 2000 to 2008, the Mekong Delta of Vietnam experienced major crop losses of rice as RGSV and rice ragged stunt virus, also vectored by N. lugens, occurred together.