Control of Tobacco Cutworm by Using Crude Extract from <I>Tacca chantrieri</I> Andre.

Abstract

The study aimed to compare the efficiency to control tobacco cutworm of crude extract from Tacca chantrieri Andre. leaf and rhizome. Different solvent; water, water and boil for 2 hr., methanol and acetone were used for extraction. The result revealed that crude extract by water had no antifeedant efficiency. Crude extracts from rhizome with water and boil for 2 hr showed as promising efficiency as those with methanol and acetone. Extraction from rhizome with acetone gave the best result even at the very low concentration of only 1%.