Table 4: Cultural and microscopic characteristics of A. solani.

Features Description
Colony Initially greenish and becoming black with age
Mycelia Smooth mycelial growth with circular and irregular margin
Conidiophore Singly or in groups, straight or flexuous brown to olivaceous brown
Conidia Solitary straight or slightly flexuous oblong or muriform or ellipsoidal tapering to beak, pale or olivaceous brown, in the broadest part with 5-9 transverse and 0 or a few longitudinal septa.
Beaks Flexous, pale and sometimes blanched

A. solani; Alternaria solani