Journal of Entomological Research

An alternative plant that can be used as organic insecticide to minimize the use of synthetic insecticides against armyworm (Spodoptera litura L.) and the diamondback moths (Plutella xylostella L.) is yam seed (Pachyrhizus erosus U.). The purpose of this study was to analyse the effect of giving a number of concentrations of yam seed extract on the abundance of armyworms and diamondback moth pests and to find an effective concentration of yam seed extract in mustard green cultivation. This study used an experimental method with a completely randomized design, consisting of 6 treatments and 6 replications, so 36 experimental units were obtained. The concentrations used were 0% (P0), 2% (P1), 4% (P2), 6% (P3), 8% (P4), and 10% (P5). Abundance data was analysed using ANOVA variance, and continued with a further test (Duncan Multiple Range Test) at a 5% significance level. The parameter observed in the study was the abundance of armyworms and diamondback moth pests on mustard green plants. The results showed that yam seed extract had a significant effect on the abundance of armyworms and diamondback moth pests on mustard green plants. The abundance of armyworms with 10% (P5) treatment was lower than the other treatments. Yam seed extract has the potential to be used as an active ingredient in organic insecticides.