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Transmission of Rice Gall Dwarf Virus by the Green Rice Leafhopper. Hitoshi Inoue, Research Entomologist, Kyushu National Agricultural Experiment Station, Chikugo, Fukuoka 833. Toshihiro Omura, Research Plant Pathologist, Institute for Plant Virus Research, Tsukuba Science City, Yatabe, Ibaraki 305, Japan. Plant Dis. 66:57-59. Accepted for publication 22 March 1981. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-57.

The rice gall dwarf virus was transmitted in a persistent manner by the green rice leafhopper and was also transmitted through leafhopper eggs to 87% of the progeny. Transmission efficiency was the highest in Nephotettix nigropictus followed by N. cincticeps and N. malayanus, while N. virescens was an inefficient vector. Incubation period of the virus in N. nigropictus ranged from 12 to 18 days at 25 C. Transmission efficiency of N. nigropictus increased as the acquisition access period was increased, reaching a maximum of 96% with a 12-day acquisition access period.