California state law requires pesticide applicators to pass an examination administered by the Department of Pesticide Regulation (DPR) before they can be licensed to manage aquatic pests in lakes, ponds and other natural or artificial waterway.

The recommended study guide for this exam is the newly published book Aquatic Pest Control, the fifth and most recent volume in the Pesticide Application Compendium produced by the University of California Statewide Integrated Pest Management (IPM) Project.

The 168-page book is packed with information that might not be readily apparent to those who already know something about aquatic pests. For instances, waterhyacinth, a major aquatic weed in the Sacramento-San Joaquin Delta, also creates a favorable breeding ground for two other serious pests, mosquitoes and a relatively new arrival, the Chinese mitten crab.

Aquatic Pest Control covers a diverse range of aquatic environments, including natural marshes, irrigation canals, parks and golf course ponds, hatcheries and recreational waters and drinking water reservoirs. Chapters include information on identifying weeds and pests, reading and understanding pesticide labels, mixing and applying pesticides safely, selecting and calibrating aquatic herbicide application equipment, laws affecting pesticide use, recognizing and preventing pesticide poisoning, protecting the environment, and how to handle pesticide emergencies.

The book contains a glossary, 54 illustrations, more than 100 photographs, eight tables and 31 sidebars that expand on important points and provide calculation formulas.

Aquatic Pest Control sells for $25 plus tax and shipping. It is available from ANR Communication Services. Phone (800) 994-8849 or (510) 642-2431. For additional information about the books in the Pesticide Application Compendium, visit IPM's website (http://www.ipm.ucdavis.edu).