As useful to growers and crop consultants as they are to researchers, these practical guidebooks offer convenient help in identifying, controlling, and preventing the diseases of major crop plants. Each volume features: -- Full-color photographs to help you quickly match symptoms with diseases-- Descriptions of symptoms, causes, cycles, and control practices-- Authoritative knowledge from leading plant scientists-- Discussion of major pathogens, including bacteria, fungi, nematodes, and insectsCombines the finest qualities of the best-selling previous editions with updated and new sections, making it a thorough, authoritative and practical reference.