(1929) The fungus Cochliobolus sativus is the teleomorph (sexual stage) of Bipolaris sorokiniana (anamorph) which is the causal agent of a wide variety of cereal diseases.

C. sativus is extremely rare in nature and thus it is the asexual or anamorphic stage which causes infections.

New cultures produce abundant simple conidiophores, which may be single or clustered and measure 6–10 x 110–220 μm with septations.

Conidia are olive-brown and ovate to oblong, with rounded ends and a prominent basal scar.

1, Alopecurus pratensis1, Aneurolepidium chinense1, Avena sativa1 Bromus inermis1, B. marginatus1, B. willdenowii1 Calluna vulgaris1, Chloris gayana1, Cicer arietinum1, Clinelymus dahuricus1, C. sibiricus1, Cynodon dactylon1, C. transvaalensis1 Dactylis glomerata1 Echinochloa crus-galli1, Elymus junceus1 Festuca sp.

USDA ARS Fungal Database Cochliobolus sativus has a world-wide distribution.

The B. sorokiniana comes with Pyrenophora tritici-repentis and causes millions of tons of wheat loss each year.

The symptoms are blotch as well as induced senescence due to premature chlorophyll losses Rosyara et al., 2007[dead link‍].