A wealth of data collected on L. dispar phenology over 16 years allowed us to conduct a comprehensive analysis and relate season-long trap catches and flight duration to the maximum daily trap catch during peak flight [source]. This data may help predict the efficacy of control tactics, make decisions to ensure optimal results, and predict the mating success of L. dispar females and the likelihood of persistence of isolated low-density populations. Since daily values fluctuate significantly around the predicted Gaussian peak and flight duration also varies significantly from year to year, this leads to significant variability in daily trap catches in populations with the same density. To account for this variability, the calculator provides a range for a daily peak value instead of a single number.