Beet necrotic yellow vein virus
BNYVV was found by ELISA testing of sugar beet roots in 7 out of 9 counties in Castilla y Léon. The virus had not previously been recorded in Spain.
Sources
Garcia P. & Cambra J. Prospecting for BNYVV from rhlzomanla in Castllla y Leon Community. Proceeding of the 7th Congress of the Mediterranean Phytopathological Union, Granada (ES), September 1987 p. 150.