ISSN (0970-2083)

Research Article Open Access

ECO FRIENDLY MANAGEMENT OF EARLY BLIGHT OF TOMATO USING BOTANICAL PLANT EXTRACTS

Abstract

Antifungal activities of 9 plant extracts were evaluated against Alternaria solani causing early blight of tomato using radial growth technique. While all tested plant extracts produced some antifungal activities, the results revealed that Azadirachta indica (neem), Datura stramonium (datura) and Withania somnifera (ashwagandha) showed significant antifungal activities. The leaf extract of Ashwagandha (W. somnifera) was most effective in inhibiting the mycelial growth of A. solani (62.56%). Extract of D. stramonium (34.65%) and A. indica (25.27%) exhibited moderate activity with average mycelial inhibition of 34.65 and 25.27% respectively. Allium crispum (jungli pyaj), Mentha requienii (pudina), Lepidium sativum (chandrasur), Ocimum tenuiflorum (Tulsi) and Calotropis gigantia (Aak) also inhibited mycelial growth of A. solani. Sporulation per microscopic field was found maximum in C. gigantia (89.11) and minimum in A. crispum (1.44).

D.K. SAHU, C.P. KHARE AND R. PATEL

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