GENERAL METHODS. Sequential Simplex Optimization Strategies in Agrichemical/Drug Design (Ernest L. Plummer). Principles and Usage of Steric Parameters in Correlation Analysis of Pesticides (Carlo Silipo and Antonio Vittoria). Novel Ways to Factor the Bioresponse Data of Drugs, Toxicants and Agrochemicals (Philip S. Magee). A Chemorational Approach to Agrochemicals: The Trifluoromethylpyridinyl Group as a Building Block (Takahiro Haga). APPLICATIONS. INSECTICIDES. QSAR and Rational Design of Insecticides (George Holan and David A. Winkler). Rational Approaches to Finding Agrochemical Leads (Morifuso Eto). Physical-Organic Concepts in Structure-Activity Relationships in the Development of Insecticides (T.R. Fukuto and S. Keadtisuke). Structure Evolutions of Synthetic Pyrethroid Insecticides in Correlational Views Guided by Template Procedure as Applied to Natural Product Models with High Structural Multiplicity (Hirosukle Yoshioka). Transition State Analog Enzyme Inhibitors: Structure-Activity Relationships of Trifluoromethyl Ketones (Andras Scekacs, Barna Bordas, and Bruce D. Hammock). Design of Proinsecticides (Noriharo Umetso). HERBICIDES. Structure-Activity Studies of Photosynthesis Inhibitors (Wilfried Draber). Application of the Hansch-Fujita Method to the Design of Amide and Urea Herbicides (Chiyozo Takayama, Katsuzo Kamoshita, Akira Fujinami and Osuma Kirino). Development and Analysis of QSAR Models for Generating Pesticidal Synthesis Programs (Barrington Cross and David W. Ladner). Chemical Structure and Activity of Herbicidal Inhibitors of Phytoene Desaturase (Gerhard Sandmann and Peter Boeger). Structure-Activity Relationships of Sulfonylurea Herbicides (Tariq A. Andrea, Steven P. Artz, Thomas B. Ray, and Robert J. Pasteris). Cyclohexanedione Herbicides: Their Activities and Properties (Isao Iwataki). FUNGICIDES. Application of the Hansch-Fujita Method to the Design of Imide and Carbamate Fungicides (Katsuzo Kamoshita, Chiyozo Takayama, Junya Takahashi, and