Eco Friendly Management of Anthracnose of Black Gram (Vigna mungo L.)

An experiment was conducted during the 2023 Kharif season at the Central Research Farm, Department of Plant Pathology, SHUATS, Prayagraj, U.P. to evaluate the efficacy of Trichoderma harzianum with botanicals against anthracnose disease in black gram under field conditions. There were seven treatments including control, viz., T0 – Control, T1 - Trichoderma harzianum @ 10g (S.T) + 10% (F.S), T2 - Trichoderma harzianum @ 10g (S.T) + Datura leaf extract @ 10% (F.S), T3 - Trichoderma harzianum @ 10g (S.T) + Neem leaf extract @ 10% (F.S), T4 - Trichoderma harzianum @ 10g (S.T) + Onion bulb extract @ 10% (F.S), T5 - Trichoderma harzianum @ 10g (S.T) + Garlic clove extract @ 10% (F.S) and T6 - Hexaconazole @ 0.2g (S.T) + 0.2% (F.S). Among all the treatments, T3 - Trichoderma harzianum @ 10g (S.T) + Neem leaf extract @ 10% (F.S) was found to be the significant against anthracnose. Minimum disease intensity (26.43%), maximum plant height (46.90 cm), maximum number of pods per plant (16.27 pods/plant), maximum yield (0.70 t/ha) and highest cost benefit ratio (1:2.13) was recorded in T3 - Trichoderma harzianum@ 10g (S.T) + Neem leaf extract @ 10% (F.S) as compared to treated check Hexaconazole and untreated check control.