In vitro Evaluation of Bioagents against Fusarium solani (Mart.) Sacc. CausingWilt of Betelvine (Piper betel L.)

摘要

The fungal biocontrol agent Trichoderma harzianum (Th-55) and T. viride (Tv-21) inhibited 85.00 and 80.56 per cent growth of the pathogen, respectively. Least inhibition was observed with T. harzianum strains Th-2 (67.78%) and Th-41 (67.78%). The bacterial bioagents Bacillus subtilis (P-24) and B. subtilis var. amyloliquefaciens (FZB24) inhibited 72.59 and 67.41 per cent growth of the pathogen, respectively. The antagonist T. harzianum (Th-55), T. viride (Tv-21) and B. subtilis (P-24) can be exploitin field conditions for the management of betelvine wilt.