Vol. 12, Issue 6 (2023)

Author(s):
Pranjali Sinha, Jahaar Singh, Neelum Chouksey and AK Singh

Abstract:
Colletotrichum (teleomorph Glomerella) is an important plant microbe that affects agricultural and plantation crops across the world. It adheres to the hemi-biotrophic mode of feeding, in which both biotrophic and necrotrophic stages occur sequentially. Pathogenic variability among Colletotrichum species affecting various crops as mango (anthracnose), strawberry (fruit rot), chilli (anthracnose), turmeric (leaf blight), soybean (pod blight), bean (anthracnose) and sugarcane (red rot). These naturally infected seven crops were collected from different growing regions of Chhattisgarh. In the present study, laboratory evaluation of two Bio-control agents (Fungus-Trichoderma viride and Bacteria-Pseudomonas fluorescence), reponsed differentially to Colletotrichum spp. via confrontation assay. Highest mycelial inhibition by T. viride was observed in C. fragariae (C₇) inhibition of 81.4%, followed by C. gloeosporioides (C₆) with 80% and C. lindemuthianum (C₄) with 77.4%, respectively however, P. fluorescencs, C. falcatum, and C. fragariae showed similar inhibition of 51.1%.