Abstract
Efficacy of nine plant products (leaf and oil cake extracts) was investigated in suppressing the colony growth and sporulation of Fusarium solani (causing wilt disease in Dalbergia sissoo) and F. oxysporum (causing wilt disease in Gmelina arborea) in vitro. Extracts of Azadirachta indica, Vitex negundo, Lantana camara, Eucalyptus tereticornis, Neem and Jatropha oil cakes were applied against F. solani whereas former 3 products along with Calotropis procera, Tagetes erecta and mustard oil cake were applied against F. oxysporum. All above mentioned plant products significantly reduced the growth and sporulation of both the pathogens over control. Extracts of E. tereticornis and A. indica at 10 % conc. were found to be most effective in inhibiting the growth of F. solani and F. oxysporum respectively. Extract from A. indica leaves also reduced sporulation in both the pathogens significantly.
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