ANTIFEEDANT ACTIVITIY OF ETHANOL EXTRACTS OF FIVE SELECTED PLANTS AGAINST LARVAE OF TARO CATERPILLAR (Spodoptera litura Fabricius, 1775)

This research was carried out to investigate antifeedant activity of ethanol extracts from five plants against larvae of Spodoptera litura F. The plants that used were Pterocarpus indicus, Centella asiatica, Calophyllum inophyllum, Alstonia scholaris, and Lantana camara. The aimed of this study were to find effective minimum concentration that has antifeedant properties against third instar S. litura larvae and to screen the best extract with antifeedant properties. This research used leaf disk method with choice and no choice test. The parameter was the average leaves areas that were consumed by the larvae. The data were analyzed by using non parametric statistics of Mann-Whitney U. The results showed that the effective minimum concentrations that showed antifeedant properties from C. asiatica, C. inophyllum, A. scholaris and L. camara extracts were 625 ppm for the choice test, however, extract of P. indicus did not show the effective minimum concentration for the antifeedant properties. There was no significant antifeedant properties from the extract with no choice test. Based on total value of antifeedant coefficient, it was found that C. asiatica was the best extract with antifeedant properties at concentration of 2500 ppm with coefficient of antifeedant activity in range of 101-150% so that categorized has a good antifeedant properties