Pengujian Model Perangkap Feromon-Exi dalam Pengendalian Spodoptera exigua Hübner pada Pertanaman Bawang Merah di Agroekosistem Pulau Ambon

Abstract

The beet armyworm, Spodoptera exigua (Hübner), is a major destructive pest in shallot cultivation that causes substantial yield losses and drives excessive reliance on synthetic insecticides. Utilizing sex pheromone traps presents an eco-friendly semiochemical approach for population monitoring and suppression within Integrated Pest Management (IPM) frameworks. Therefore, this study aimed to evaluate the effectiveness of pheromone traps in capturing Spodoptera exigua Hubner in onion crops and their impact on reducing damage intensity. The treatments consisted of pheromone traps (PF) and yellow pheromone traps (PKF). Observations were carried out for eight weeks on the number of trapped S. exigua imago and the intensity of crop damage. Results showed that PF captured an average of 15.7 individuals, higher than PKF (9 individuals), while no imago was caught in the control. Statistical analysis (BNJ test) revealed significant differences among treatments. The lowest damage intensity was found in PF (11.31%), compared to PKF (13.36%) and control (15.62%). Thus, pheromone traps are effective in suppressing S. exigua populations and reducing damage intensity in onion crops, making them a potential component of Integrated Pest Management (IPM) strategies.