Studies on the optimal use of pesticides, their disposal, and effects are presented. Papers include: Financing the Disposal of Unwanted Agricultural Pesticides, Lewell F. Gunter and Terence Centner, University of Georgia. Determinants of Pesticide Registration for Food Crops, Claude Courbois, North Carolina State University and International Food Policy Research Institute. A New Measure of Integrated Pest Management - Weed IPM by Corn Producers, Jorge Fernandez-Cornejo and Sharon Jans, USDA/ERS. The Environmental Effects of Adopting IPM Techniques: The Case of Peach Producers,Jennifer Ferraioli and Jorge Fernandez-Cornejo, USDA/ERS.