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Abstract

Tomato is the most important vegetable crop in India. Two common and davasting diseases of tomato are early blight and Fusarium wilt caused by Alternaria solani and Fusarium oxysporum f. sp. lycopersici respectively. The effect of Aegle marmelos leaf extract has been studied against Alternaria solani and Fusarium oxysporum, the causal organism of early blight and wilt of Tomato plant (Solanum esculentum Mill) respectively. Aqueous leaf extracts of 2.5, 5.0, 7.5 and 10.0% concentration were suppressed mycelial growth of both pathogenic fungi and the degree of suppression gradually increased with increase in concentration. A concentration of 10.0% aqueous leaf extract were found to be most effective. Alternaria solani and Fusarium oxysporum significantly decreased from 6.1 cm and 8.0 cm in control to 0.4 cm and 0.8 cm at 10.0% concentration.