ASIH as A Insectiside Plant for Exterminated Pest Spodoptera exigua (Grayak Caterpillar, Javanese) on A Onion Plant (Allium cepa L.)

Abstract

ASIH is a blend of essential oils of citronella and clove. Clove leaf essential oil containing eugenol and citronella essential oil containing Geranial and citronelal can be used as an insecticide plant. One of the pests that became the enemy of the onion farmers is Spodoptera exigua. These pests cause crop failures in the planting of onion. One way to overcome the pest Spodoptera exigua by applying insecticide plant. This study aims to determine the effectiveness of essential oil of clove leaf (Syzygium aromaticum) and essential oil of citronella (Andropogon nardus) on mortality pest Spodoptera exigua This type of study is experimental with completely randomized design (CRD), which consists of 16 treatments with 3 times repetitions. Sampel research is Spodoptera exigua tail number 480 is divided into 16 treatments, 0%. 10%. 20%. 30% concentration of citronella. While the concentration of clove 0%. 5%. 10%. 15%. Each treatment contains 10 tail Spodoptera exigua and performed 3 repetitions. Observations were made after 24 hours and counted the number of dead caterpillars. Data which obtained from analysis F-test gain the best treatment essential oil of citronella 30%:clove 15% mortality rate (death) in the pest Spodoptera exigua highest at 90%. Where as the control treatment (cloves 0%: citronella 0%) showed caterpillar mortality rate is very low.

Keywords: Spodoptera exigua, clove leaf and citronella essential oil, insecticide plant.