Appropriate Number of Sex Pheromone Trap for Monitoring Spodoptera exigua Hubner (Lepidoptera: Noctuidae) Moths on Shallot Field

Abstract

The research was carried out to determine the appropriate number of sex pheromone traps for monitoring the Spodoptera exigua moths in shallot crop which was grown in Yogyakarta Special Territory, Bantul Regency (Samas). This research was conducted in August until September 2016. Sex pheromone trap was arranged on shallot aged 3 weeks after planting. Sex pheromone trap with hexadecenat tetra asetat ingredients was placed on sticky yellow trap. This research used RCBD experimental design with single factor experiment namely the number of trap i.e. 3, 5, 6, 8 units/2.000 m2 with sex pheromone, and three traps without sex pheromone as control. Each treatment was repeated 5 times so 125 samples of experiments were obtained. Observation was made by counting the number of moths caught in sex pheromone trap. The result of observation was analysed with analysis of variance (ANOVA) and DMRT α 5.0%. The results show that the appropriate number of trap to monitor the pest infestation was 3 units/2.000 m2.

Population dynamic and pheromone use for early monitoring of Spodoptera exigua Hübner (Lepidoptera: Noctuidae) in Indonesia

“…Management (Tewari et al, 2014). Sex pheromones can be used to monitor pest populations early in the field or for mass trapping of males (Lestari et al, 2020). Additionally, pheromones can be utilized for mating disruption (Benelli et al, 2019;Mujiono & Putra, 2015).…”

“…Applying this control threshold can reduce the use of insecticides by 35.71%, with a yield of 13.46 t/ha, equivalent to using insecticides twice a week. Research related to S. exigua monitoring using pheromones, as conducted by Lestari et al (2020) and Moekasan et al (2013), has not proven whether the capture of S. exigua imago using pheromone traps is closely related to the level of plant damage, and this study intends to prove this. Additionally, this research also aims to demonstrate that S. exigua is present throughout the year, both during the off-season and during the shallot season.…”

“…The sex pheromone trap effectively captured S. exigua moths (Kusumawati et al, 2022). The appropriate number of traps to monitor pest infestation was three units per 2000 m 2 (Lestari et al, 2020). Moekasan et al (2013) also explained that the threshold for S. exigua pest control, based on the capture of moth populations using Pheromone Exi was ten or more individuals per trap per day.…”

Management of Spodoptera exigua on shallots in several areas of Indonesia using mating disruption with different pheromone doses

“…Similar to other managing technologies, such as insecticides, biological control agents, or resistant crop varieties, MD technologies should be managed correctly to extend their effectiveness by combining them with other management strategies. In addition, MD has been reported to be effective against low or moderate populations (Lestari et al, 2020). The current study aimed to determine the effectiveness of MD at different dosages in several areas.…”

The Evaluation of Pheromone Traps Glue Formula for Monitoring of Spodoptera exigua Hubner (Lepidoptera Noctuidae) in Shallot Fields

“…In Indonesia, the Spodoptera exigua Hubner (Lepidoptera: Noctuidae), also known as the beet armyworm, is reported as the most important pest insect causing low productivity of shallots.. Low shallot productivity caused by S. exigua. Was reported in several regions in Indonesia, including Brebes and Cirebon [1], Bantul [2] and Kulon Progo [3].…”