Comparative Efficacy of Insecticides against Fall Armyworm (Spodoptera frugiperda) on Pertiwi Exotic Sweet Corn under Field Conditions
DOI:
https://doi.org/10.24843/Keywords:
attack incidence, fall armyworm, insecticide efficacy, Spodoptera frugiperda, sweet cornAbstract
Fall armyworm (Spodoptera frugiperda) is an important constraint on sweet corn production. This study compared eight insecticide active ingredients with an untreated control for suppressing the pest on the Pertiwi Exotic cultivar. The field experiment followed a randomized complete block design comprising nine treatments, three blocks, and 27 plots. The evaluated active ingredients were chlorantraniliprole, cyantraniliprole, emamectin benzoate, indoxacarb, methomyl, cypermethrin, chlorpyrifos, and fipronil. Insecticide treatment significantly influenced larval abundance, attack incidence, damage severity, and cob weight. Several treatments reduced the recorded larval population to zero at the final assessment and consequently produced 100% efficacy relative to the untreated control. Cypermethrin exhibited comparatively low performance under the conditions of the experiment; however, this field response alone cannot confirm resistance. The results show that insecticide choice materially affected pest suppression and yield protection.
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