Vol. 10, Issue 8 (2021)

Author(s):
Vikash Kumar Yadav, VP Choudhary, SK Singh, Manish Kumar Maurya, SP Vishwakarma, Rajendra Prasad, Jaishraj Yadav and Akash Singh

Abstract:
Among the fungal diseases, sheath blight, caused by multinucleate Rhizoctonia solani Kühn (teleomorph: Thanatephorus cucumeris Donk), a ubiquitous pathogen. It is an important fungal disease of rice ranking only after blast and often rivaling it. The potential losses due to sheath blight alone in India has been estimated up to 50.3 per cent. An attempt was made to investigate the antifungal efficacy of botanicals viz., neem (Azadirachta indica), tulsi (Ocimum sanctum), garlic (Allium sativum), onion (Allium cepa) and ginger (Zingiber officinale) in vitro by poison food techniqueat 5 and10 per cent concentrations. The bulb extract of garlic and ginger rhizome extract of ginger suppressed the mycelial growth (68.70 and 67.77 respectively) at 10% concentration followed by neem leaf extract (64.63%), bulb extract of onion (63.52%) and tulsi leaf extract (61.52%) at 8 days after inoculation.