This submission provides R-code and data files for our peer-reviewed work. The R-notebook "Analysis_likelihood_ratio_test" contains the code used to estimate the parameters of concentration-response curves (EC10, EC50, LC10, LC50, and slopes) and perform likelihood ratio tests to compare curves from different tested life stages. The R-notebook "Figures_Concentration_response_curves" showcases the code used to generate the figures presented in the manuscript. The dataset files are provided in CSV format with Comma Separated Values: Cyproconazole_FolsomiaCandida_10days_20days_RawData_New.csv Imidacloprid_FolsomiaCandida_10days_20days_RawData_New.csv Teflubenzuron_FolsomiaCandida_10days_20days_RawData_New.csv Thiacloprid_FolsomiaCandida_10days_20days_RawData_New.csv The submission includes the following: R files: R notebooks described above. CSV files: Count data of springtail juveniles and adults. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 859891. This publication reflects only the authors' view and the European Commission is not responsible for any use that may be made of the information it contains.