EVALUATION OF TRICHODERMA BASED COMMERCIAL BIO-FUNGICIDES IN CONTROLLING FOOT AND ROOT ROT DISEASE OF LENTIL CAUSED BY SCLEROTIUM ROLFSIIEVALUATION OF TRICHODERMA BASED COMMERCIAL BIO-FUNGICIDES IN CONTROLLING FOOT AND ROOT ROT DISEASE OF LENTIL CAUSED BY SCLEROTIUM ROLFSII

Abstract

Four experiments were conducted to evaluate commercial bio-fungicides for the management of foot and root rot disease of lentil at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during November 2019 to April 2020 following CRD and RCBD design with 3 replications for in vitro and in vivo experiments, respectively. Susceptible variety BARI Masur -1 (Utfala) was used in this experiment. Nine Trichoderma based commercial bio-fungicides viz. G-derma (powder), Bio-derma (powder), Decoprima, Recharge, Bio-derma (peat soil), G-derma (LDS), Terrabio, Decohumate, Ttricost and two chemicals viz. Formaldehyde and Autostin were assessed in this study. In pot experiment, seed treatment with bio-fungicides was done and the lowest disease incidence (6.48%) was recorded from T (Tricost) and the highest disease incidence (54.91%) was observed from T viii

0 5 (Control). Significantly the highest yield /pot (12.55 g) was found in T (Tricost) treatment. In another pot experiment, soil treatment with bio-fungicides was done and the lowest disease incidence (4.84%) was recorded from T 5 5 (Bio-derma - peat soil) and the highest disease incidence (53.29%) was observed from T 0 (Control). Significantly the highest yield /pot (16.83 g) was found in T (Bioderma-

Peat soil) treatment. Moreover, in case of seed and soil treatment with biofungicides, the lowest disease incidence (4.87%) was recorded from T (Decoprima) and the highest disease incidence (49.92%) was observed from T 0 4 (control). Significantly the highest yield /pot (17.83 g) was found in T (Decoprima) treatment. In field experiment, the lowest disease incidence (10%) was recorded from T 4 (Tricost) and the highest disease incidence (48.89%) was observed from T 0 5 (Control). The highest yield /plot (437.67 g) and yield/m 2 (145.89g) found in T (Tricost) treatment. Thus, seed and soil treatment with Trichoderma based bio-fungicides significantly reduced foot and root rot disease of lentil.