Black sooty mould on upper side of lower leaves.
Secondary symptoms - Aphids feed on the underside of leaves & centre of the cabbage head. Honeydew (a sugary liquid) secretion with mould growth is also observed.
Solutions for this issue
Tata Manik (Acetamiprid 20% SP) 100 g
RJ TATA MANIK (Acetamiprid 20% SP) (100 Gm)