The pulse beetle, Caryedon serratus, is a significant pest responsible for considerable post-harvest losses in stored leguminous seeds. The present study investigates the bioefficacy of two botanical—Balanites aegyptiaca seed oil and Capparis decidua stem extract—against C. serratus under laboratory conditions. Phytochemical screening of the botanical extracts revealed the presence of bioactive constituents such as saponins, alkaloids, and terpenoids, known for their insecticidal and antifeedant properties. Bioassay experiments were conducted to assess adult mortality. Results demonstrated that B. aegyptiaca seed oil and C. decidua stem extract caused significant adult mortality and reduced fecundity in a dose-dependent manner. These findings support the potential use of these indigenous plant-based formulations as eco-friendly alternatives to synthetic insecticides in stored grain pest management.