Final diagnosis


Pests of air-cured tobacco leaves

A wet and black rot starting from the scar of the petiole (pole rot). <i>Rhizopus arrhizus</i>
The fungus sporulates abundantly on the damaged tissues in a greyish aerial mycelium, covered with tiny black pinhead-like spots. <i>Rhizopus arrhizus</i>
A few sporangiophores of<i> Rhizopus</i> sp. On some of them, the vesicle of the sporagium has torn, releasing many spores.
Small black, elliptic spots dotting the midrib of a leaf. <i>Cladosporium </i>sp.
Wet stem rot appears on tobacco during curing and it is covered by many sporiferous pinkish pads. <i>Fusarium</i> sp.
A dark, wet rot, covered by white, very hairy mould. <i><b>Botryosporium</i> sp.</b>