Final diagnosis

Sooty mold

Sooty mold on tomato leaflets and fruits.
Detail of dense sporulation materializing sooty mold on tomato leaflet.
Detail of sooty mold on green tomato fruit
Sooty mold on tomato fruit showing multiple growth slots.
Sooty mold on eggplant leaf.
Detail of sooty mold on eggplant leaf.
Sooty mold is made up of a multitude of colonies of one to several often black moulds.
Sooty mold on melon leaves and fruit caused by the proliferation of aphids.