TY  - REP
AU  - Ramirez Araya,I.
ED  - World Perspectives on Barley Yellow Dwarf International Workshop
TI  - A review of barley yellow dwarf virus in the Southern Cone Countries of South America
SN  - 968-6127-39
U1  - 91-061795 
PY  - 1990///
KW  - America
KW  - Aphididae
KW  - Aphidoidea
KW  - Arthropoda
KW  - Disease transmission
KW  - Hemiptera
KW  - Homoptera
KW  - Insecta
KW  - Latin America
KW  - Luteoviruses
KW  - Pathogenesis
KW  - Pests of plants
KW  - Plant diseases
KW  - AGROVOC
KW  - Plant viruses
KW  - Resource conservation
KW  - Resource management
KW  - South America
KW  - Sternorrhyncha
KW  - Viruses
N1  - 30 ref.; Summary (En)
N2  - Aphids and barley yellow dwarf (BYD) have been known in the southern Cone countries of South America (Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay) for many years, but the aphids role as vectors of barley yellow dwarf virus (BYDV) in cereals was not apparent until the late 1960s. The aphid vectors most widely distributed throughout the region are Metopolophium dirhodum (Walker), Sitobion avenae (Fabricius), Rhopalosiphum padi (L.), and Schizaphis graminum (Rondani). BYD was positively identified in 1967 (Brazil) and 1972 (Chile). During 1974/75 and 1975/76 severe BYD epidemics developed, with losses in the range of 10 to 60 %. From
T2  - Burnett, P.A. (ed.). World perspectives on barley yellow dwarf. Proceedings. Mexico, DF (Mexico). CIMMYT. 1990. p. 29-34
ER  -