The sugarcane cyst nematode, Heterodera sacchari Luc and Merny 1963, has been found in some rice growing localities in the Kwara State of Nigeria (Babatola, unpublished). Merny (1970) has recorded the occurrence of H. sacchari on rice in Ivory Coast and this nematode was also observed on rice in Senegal (Fortuner and Merny, 1973). Pot tests were undertaken to assess the pathogenicity of the nematode to rice, Oryza sativa L.
