The fungus affects legume field crops, ornamentals, and forest and shade trees. A black discoloration and necrosis of roots and lower stems ae typical symptoms. Cylindrocladium causes necrosis and black discoloration of the root system. Infection may spread into the crown and lower stem. Cylindrocladium conidia may be observed on infected crown or lower stem tissue.
Conidiophores are colorless and highly branched.
Conidia are produced at the apex of conidiophore branches. Masses of conidia appear white and often are arranged in a circular, closely packed pattern.