author(s)
S Pavan Kumar, MK Mishra and PR Mishra

abstract
Fusarium blight is a potentially destructive disease in tomato occurring on the oldest leaves as small, brownish to black lesions which are due to foliar blight disease and it was caused by Fusarium oxysporum. The disease causes huge yield as well as post-harvest losses. Fusarium oxysporum exhibited dull to fluffy white mycelium with a slight faint reddish tinge at the middle on PDA. Eight plant extracts and four biocontrol agents were evaluated following poison food technique and dual culture. Garlic+Neem+Datura and only garlic extract induced 100% growth reduction at 10% and 20% concentrations for both the pathogens followed by Neem oil up to 69% for Fusarium oxysporum. Neem leaf extract recorded least growth inhibition of 5.81% and 5.9% in 10% and 20% concentration respectively. Among three fungal bio-control agents Trichoderma viride recorded maximum growth inhibition against F. oxysporum (81.27%). Pseudomonas fluorescens inhibited growth 80.70% against F. oxysporum.