This instructional program was jointly developed by the Utah Department of Agriculture and Food – Division of Plant Industry and Utah State University. Informational content was written and evaluated by F. Richard Beard and Howard M. Deer with Utah State University Cooperative Extension, and Brian K. Warnick with the Department of Agricultural Systems Technology and Education at Utah State University.  This website was developed and designed by Tami D. Warnick.  Much of the information presented in this website is based on material appearing in the National Pesticide Applicator Certification Core Manual.