An investigation was carried out to determine the efficacy bioagents and essential oils against Phoma cajani causing stem canker disease of pigeonpea. The bioagents viz. Trichoderma spp, Bacillus spp and Pseudomonas spp were found effective against test pathogen. Among them, T. asperellum was found most effective and recorded highest percent mycelial inhibition (72.91 %). Followed by T. virens, (68.85 %) and T. hamatum (64.59 %). The least mycelial growt hinhibition which recorded in T. harzianum(63.36 %). The two bacterial antagonists tested, Bacillus subtilis was found most effective and recorded highest percent mycelial inhibition (51.39 %) Followed by Pseudomonas fluorescens (41.64 %) against maximum per cent mycelial growth inhibition was (100%) over untreated control. The radial per cent mycelial growth inhibition recorded with the essential oils tested was ranged from 45.74 to 100.00 %. However, it was significantly highest and per cent mycelial growth inhibition with essential oils citronella oil and lemon grass oil. These were followed by lavender oil (91.36 %), eucalyptus oil (63.55 %), neem oil (52.10 %), olive oil (47.19 %), and peppermint oil (45.74 %) with the maximum percent mycelial growth inhibition being (100 %) over the untreated control. So, organic management might be a better option to control against Phoma cajani causing stem canker disease of pigeonpea also having environment friendly.

Stem Canker Disease, Phoma cajani, Ecofriendly management, Essential oils, Pigeonpea, Bioagent

In present investigation the bioagents viz., T. asperellum was found most effective and recorded highest percent mycelial inhibition (72.91 %). However, in essential oils, cent per cent mycelial growth inhibition with citronella oil and lemon grass oil. These were followed by lavender oil (91.36 %), eucalyptus oil (63.55 %), neem oil (52.10 %), olive oil (47.19 %), and peppermint oil (45.74 %) with the maximum percent mycelial growth inhibition being (100 %) over the untreated control. So, organic management might be a better option to control against Phoma cajani causing stem canker disease of pigeonpea.

Kanase K. M., S. S. Mane, S. T. Ingle and S. B. Bramhankar (2023). Eco-friendly Management of Stem Canker Disease of Pigeonpea caused by Phoma cajani. Biological Forum – An International Journal, 15(9): 953-957.