Economic Evaluation of Mosquito Control and Narrow Spectrum Mosquitocide Development in California

Abstract

A simultaneous equation model of the behavior of a mosquito abatement district based on biological and economic data is presented. Results indicate high long term costs if heavy reliance on chemical pesticide control methods continues, due to a pesticide resistance buildup in the mosquito populations. Physical source reduction methods were shown to be more efficient both in the short and long run. A linear programming model is presented which optimizes the mix of chemical and physical control methods. Results indicate increasing costs of mosquito abatement as pesticide effectiveness declines. Simulation results of narrow spectrum pesticide manufacturing firms indicate negative returns to research, development and marketing for most firms even with significant subsidies. ACKNOWLEDGMENTS We would like to thank the many mosquito control district managers in California who took the time and effort to assist us in understanding the complexities of mosquito control, especially Dr. Don Murray of Delta MAD, Harman L. Clement of Kern MAD, and William E. Hazeltine of Butte MAD, who provided the empirical data for this study. Also, the contribution of Dr. G.P. Georghiou of U.C. Riverside and Don Womeldorf of the California Bureau of Vector Control is recognized. Finally, the funding provided by the Mosquito Research Coordinating Committee of the University of California was greatly