Controlling Spodoptera exigua Using Parasitoid Trichogramma japonicum in Acacia Nurseries (Acacia crassicarpa) at Kerinci Central Nursery PT. Riau Andalan Pulp & Paper

Armyworm (Spodoptera exigua Hubner.) is the main pest of acacia. Controlling such pests generally uses synthetic insecticides, which cause negative impacts as they would resistance & resurgence, environmental pollution, residual effects, secondary explosions, and reduced biodiversity. We need an alternative in control, using parasitoid Trichogramma japonicum. This study aims to test parasitism after release japonicum on Spodoptera eggs Acacia crassicarpa nurseries. The research was carried out at Kerinci Central Nursery PT. RAPP October 2019-March 2020. started with exploring, rearing releasing treatment plotted without for seven days observation analyzed T-test a 5% level. significance parasitized 41.9% parasitoids highest parasitization by 3rd plot average 53.8% lowest 1st 31.3% parasitization. that emerged from total mass brought laboratory were 14.2%. showed significantly different results reducing egg population mother plant nursery crassicarpa.