na INLIS000000000002807 Ind 0010-1118002807 A technique for examining the long-distance spread of plant virus diseases transmitted by the brown planthopper, Nilaparvata lugens (Homoptera : Delphacidae), and other mind-borne insect vectors ROSENBERG, L.J. L.J. Rosenberg and J.I. Magor Br.632.4ROSt Reprinted from : Plant Virus Epidemiology (1981) : 229-238 632.4 NILAPARVATA LUGENS PLANT VIRUSES VECTORS 840/B/91