Raw bioassay data: Cypermethrin resistance in Alphitobius diaperinus - First report and preliminary bioassay data from Colombia

This dataset contains raw data from a preliminary study characterizing cypermethrin resistance in a field-collected population of Alphitobius diaperinus (Caloto, Cauca, Colombia). The Excel file includes: continuous exposure bioassay data with knockdown counts at 4 h and mortality counts at 4, 24, 48, and 72 h for concentrations 0–25 µg a.i./cm²; recovery assay data after 4-h exposure to 15 and 25 µg/cm² with daily moistened filter paper, evaluated at 4, 24, 48, and 72 h post-transfer; experimental metadata; README and .CSV files are provided for programmatic access. This is a preliminary dataset; inferential statistical analyses and the susceptible baseline are reserved for the final article.