RAGGA, P. W. M.- D’; MOSES, S. The Evaluation of Cross Infection of Sorghum Genotypes by Ustilago cynadontis (Henn. & Henn.), the Causal Agent of Smut in Couch grass [Cynodon dactylon (L.) Pers.] in South Sudan. GPH-International Journal of Agriculture and Research, v. 3, n. 08, p. 01- 04, 2 set. 2020.