"This exciting book belongs on every naturalist's bookshelf. The excellent color photos and clear text will endear it to the amateur while the accurate identifications will please the professional. This book is an ideal gift for anyone who enjoys spending time outdoors."--Katherine Schick, Essig Museum of Entomology, University of California, Berkeley "This identification guide, with its summaries of the science and lore of galls and their causative organisms, engagingly draws one into another barely explored world, one presently known only to a few. With the publication of this book, many more can now appreciate these fascinating plant growths."--Raymond J. Gagne, Systematic Entomology Laboratory, USDA "This comprehensive, descriptive, and beautifully illustrated guide to plant galls of the West will appeal to both professional and amateur."--Diane M. Erwin, Museum of Paleontology, University of California, Berkeley "A great book for entomologists, plant pathologists, and would-be naturalists who are curious about the amazing insect-plant relationships illustrated by plant galls."--Charles Dailey, Sierra College

"California Wildlife Foundation. California Oaks Fund."

A photographic guide to 536 species of plant galls found west of the Rockies Beautiful and bizarre, plant galls are growths of various shapes, sizes, and colors produced in response to invading organisms. Describing 536 species of galls and their causative agents, Plant Galls of the Western United States explores this unique realm with stunning photos and fascinating information about the life cycles of the organisms involved. Often species-specific, plant galls can be shaped like stars, baskets, clubs, wigs, bowls, and cups, with colors and combinations that stagger the imagination. This richly illustrated field guide examines how galls develop, and their uses, seasonal appearance and growth rate, predators, and defense mechanisms. The “architects” of galls—bacteria, fungi, mites, moths, beetles, flies, midges, and wasps—are explored in depth, and descriptions are paired with illustrations of these gall-inducing organisms and their typical galls. Gall accounts are divided into those that occur on trees, shrubs, and miscellaneous hosts, including native and ornamental plants. The guide contains a useful glossary and a bibliography. Features 536 gall species—including 120 new to science and 232 that have never appeared in a field guide before Examines for the first time more than 90 species from southwestern oak trees Contains more than 150 species from most of the deserts of the western states

A much-needed study on plant galls – growths on plants formed of plant tissue that are caused by other organisms.

"David Carle has produced another gem of a book that should be in easy reach of every lover of California. Introductions to Earth, Soil, and Land in California is a portable encyclopedia-fun to read and filled with photos and facts."-Peter Moyle, auhtor of Inland Fishes of California --

"This book brings to life one of the most creative (and necessary) human endeavors and makes understandable the incredible complexity of California agriculture, one of the world's most daring experiments in feeding itself. A valuable resource that should be read by everyone—not just those of us who farm, but all of us who depend on farms."—Michael Ableman, farmer, photographer, and author of From the Good Earth, On Good Land, and Fields of Plenty. "No understanding of this state is possible without an understanding of its agriculture; that's how important this subject is."—Gerald Haslam, author of Workin' Man Blues: Country Music in California "A fascinating, intriguing, and sometimes even humorous exploration of California's agriculture, from broccoli to marijuana and beyond. At long last, a book everyday people can read to understand the state's biggest industry."—Louis Warren, University of California, Davis