Gaeumannomyces graminis var. graminis is a plant pathogen. This fungal pathogen produces extensive damage on the sheath of rice, causing black spots which protrude from the infected. This pathogen also generates a discoloration in the foliage of a plant which tends to show a straw orange colouration. G. graminicola is an anamorphic fungus which is identified as Colletotrichum graminicola within the teleomorphic phase . It is the anamorphic phase of Colletotrichum graminicola, causes anthracnose in many cereal species including maize, sorghum, barley and wheat where the production of fruiting bodies cause symptoms to appear in the host plant. Corn anthracnose blight, is that the commonest stalk disease in maize and occurs most often in reduced-till or no-till fields.