TY - JA AU - Robert,A.L. AU - Findley,W.R. TI - Diseased corn leaves as a source of infection in artificial and natural epidemics of Helminthosporium turcicum SN - 0032-081 PY - 1952/// CY - USA PB - U.S. Dept. of Agriculture KW - AGROVOC KW - Diseases KW - Maize KW - Epidemics KW - Setosphaeria turcica T2 - Plant Disease Reporter ER -