Efficacy of some Natural Product, Sodium Bicarbonate and Fungicide (Revus top®) on Neofusicoccum mangiferae, fungus

Abstract

Neofusicoccum mangiferae considered as one of most important disease of forest and horticulture trees in worldwide and Sudan. The present investigation was undertaken under laboratory conditions of Plant protection Department, College of Agricultural Studies, Sudan University of Science and Technology, to study the antifungal activity of aqueous leaves extracts of basil, bulbs of garlic plants, NaHCO3 salt and efficacy of fungicide (Revuse top) on growth, of the fungus Naeofusicoccum mangiferae. Three concentrations of aqueous extract of basil and garlic and fungicide, each of 25, 50 and 100%, NaHCO3 salt at three concentrations 10, 20 and 40% and at were used in addition to control. The results showed that all concentrations of the aqueous extracts of all plants tested, NaHCO3 and fungicide exhibited significantly high inhibitory effect against the linear growth of test fungus compared to control. However, the effect of both fungicide and garlic extracts was more pronounced against test fungus than the NaHCO3 and basil extract. The highest concentration of the fungicide revues top, garlic extract, NaHCO3 at(100%, 40%) and basil at gave significantly higher inhibition zones percent (83.6, 83.3, 60, and 44.6%) respectively compared to the untreated control in day six after inoculation. Among the plant extracts tested that of garlic was invariably the most effective in suppressing the fungus growth than its equivalent NaHCO3 and basil. Generally, the results showed that the antifungal activity increase with increase in extract concentration.