Efficacy of few plant extracts against Fusarium oxysporum f. sp. gladioli, the cause of corm rot of gladiolus

Fungi toxic effects of five medicinal plants namely, Azadirachta indica, Ocimum basilicum,Datura stramonium, Tagetes erecta and Allium sativum were tested at 2, 4, 6 and 8% concentration against Fusarium oxysporum f. sp. gladioli in vitro. Out of five medicinal plants, extract of A. indica showed maximum mycelial growth inhibition both at 8% concentration (83.5) and 2% concentration (34.5%) followed by T. erecta, A. sativum andD. stramonium that suppressed the mycelial growth at 8% concentration viz. 58.5, 35and 28.5% respectively. O. basilicum was the least effective in suppressing the mycelial growth of F. oxysporum.   Key words: Fungitoxic, corm rot, medicinal plants.