TY - JA AU - Slykhuis,J.T. AU - Hannah,A.E. AU - Richards,W.R. AU - Zillinsky,F.J. TI - Barley yellow dwarf virus on cereals in Ontario PY - 1959/// KW - Barley yellow dwarf virus KW - Cereals KW - AGROVOC KW - Oats KW - Ontario KW - Plant disease manifestations KW - Plant viruses KW - Prunus padus KW - Rhopalosiphum KW - Sitobion KW - Symptoms N1 - Illustrations, tables, literature cited p. 854 T2 - Plant Disease Reporter ER -