EVALUATION OF EXTRACTS OF SOME NOXIOUS PLANTS AGAINST COFFEE BERRY DISEASE (Colletotrichum kahawae L.)
Keywords:
Aqueous extracts, Colletotrichum kahawa, Ethanol Extracts, inhibitory effect, noxious plants extracts.Abstract
Aqueous, alcoholic and dry extracts of five different noxious plants, namely, Senna occidentalis, Melia azendrachta, Parthenium hysterophorus, Calotropis procera and Argemone mexicana were tested in in vitro condition with the purpose of evaluating their inhibiting effects against C. kahawae. Data were collected on radial growth and percent inhibition. ANOVA had indicated that the aqueous and aqueous extracts of Melia azendrachta gave highest zones of inhibition followed by Senna occidentalis with 76.02%, 59.95%, respectively. Alcoholic extracts Calotropis procera and Senna occidentalis gave the highest zones of inhibition with 72.75% and 63.62%, respectively. Senna occidentalis had superior inhibition effect in both aqueous and ethanol extracts when applied 24 hours after inoculation with 83.37% and 80.67%.
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