Efficacy of different botanicals against the Alternaria solani under in vitro conditions

Abstract

Among the six-plant extract tested, most effective plant extract was found Allium sativum (Garlic) which exhibited minimum mycelium growth (21.60 mm) at 15% concentration with the mean average minimum mycelium growth (52.86 mm). It was significantly lower of over rest of the plant extracts. However, maximum mean average mycelium growth (80.53 mm) was observed in Azadirachta indica (Neem). In case of concentrations, minimum growth of the mycelium was observed in higher concentration (15%) in all the plant extracts. It’s indicated that the mycelium growth was reduced with gradually increased in concentration of plant extract. Interaction was also found significant. In case of interaction between plant extract and concentration, mean minimum mycelium growth (52.86 mm) was found in Allium sativum (Garlic) which was at par with Jatropha curcas (Jatropha) (53.63 mm) and significantly lower over rest of plant extracts.