The Fusarium wilt of tomato (Lycopersicon esculentum
Mill.) caused by F. oxysporum f.sp. lycopersici (Sacc.) Snyder
and Hansen is recognised as one of the most devastating
disease in major tomato growing regions worldwide (Walker,
1971; Beckman, 1987). In Manipur the vegetable growers
suffer more than 50% crop losses due to Fusarium wilt of
tomato in heavily infested fields. Being a soil-borne disease
it is very difficult and uneconomical to control with chemical
alone. Biological control of soil-borne plant pathogens through
antagonists offer environmentally safe, sustainable and cost
effective alternative to chemicals.