Abstract: Ipomoea batatas (L.) Lam (Purple Sweet Potato) can grow and breed in various regions in Indonesia that can be used as food preparations and animal feed. The phytochemical content of Ipomoea batatas (L.) Lam (Purple Sweet Potato) includes flavonoids, tannins, saponins, and alkaloids. The content of phytochemical compounds can be potential as a biopesticide. The biopesticides are pesticides that are made by utilizing natural ingredients derived from plants. This study aims to determine the toxicity of LC50 Ipomoea batatas (L.) Lam extract which can be potential as a biopesticide. Ipomoea batatas (L.) Lam was extracted using 70% ethanol solvent. The dilution was carried out with the concentrations used, namely 100 ppm, 250 ppm, 500 ppm, 750 ppm, 1000 ppm, and negative controls.