Potensi Asap Cair Arang Sekam terhadap Spodoptera litura dan Pengaruhnya terhadap Keanekaragaman Artropoda pada Tanaman Kedelai Edamame

Abstract

This study aimed to examine the potential of husk charcoal liquid smoke as a bioinsecticide in controlling S. litura and its effect on the diversity of arthropods in Edamame soybeans. The research was conducted from February 2021 to June 2021, at The Plant Protection Laboratory, Bioscience Laboratory Jember State Polytechnic and farmers' land in Balung Lor Village, Jember Regency. Laboratory research examines the bioactive components of 3rd grade husk charcoal liquid smoke, toxicity. The treatment of liquid smoke of husk charcoal, compared with Fipronil as a positive control, used the Mann Whitney test. Observations were: S. litura population, damage intensity, pod weight per plant and arthropod diversity. The results of the the research were: GCMS analysis showed that the liquid smoke of husk charcoal 3rd  grade  contains 35 components that were detected by a mass spectrometer. The bioactive compound as an antifeedant with the highest concentration was Acetic Acid, ws 37.03%. LC50 and LC95 were 9% and 28% respectively; The liquid smoke of husk charcoal was more effective in reducing the population of  S. litura and the damage intensity; pods weight 48.92 grams per plant, Fipronil 23.92 grams per plant. Shannon Wiener Diversity Index of husk charcoal liquid smoke was 2.57 Fipronil was 1.85, Sorensen similarity index was 77% (different). The dominance index of Simpson bioinsecticide liquid smoke husk charcoal was 0.10 lower than Fipronil, which was 0.54.