Biological Management of Wilt in Pigeonpea Caused by Fusarium oxysporum f. sp. udum

Pigeonpea is a highly significant legume crop in India, serving as a crucial source of protein.However, the crop is susceptible to a wide array of pathogens, with over 100 known pathogens causing diseases, of which Fusarium wilt caused by Fusarium oxysporum f. sp. udum is one the major and destructive diseases. An experiment was conducted aiming the eco-friendly management of pigeonpea wilt disease by in vitro evaluation of eight bioagents (6 fungal and 2 bacterial) and eight phytoextracts against Fusarium oxysporum f. sp. udum. Out of the eight bioagents tested against Fusarium udum, the local strain of Trichoderma asperullum showed maximum mycelial growth inhibition i.e., 90.26 %. Among the eight phytoextracts tested neem showed the maximum mycelial growth inhibition at 10 and 20 percent concentration i.e., 69.56 % and 85.11 % respectively followed by garlic i.e., 67.26 % and 84 % respectively.