This concise and accurate diagnostic guide to the diseases and disorders that affect both forest and amenity trees in Europe (and some on other continents as well) will be invaluable in many studies, from pest control and forestry to landscape management and plant pathology. The book is organized by specific tree disorders; separate chapters deal with leaf diseases, bark damage, growth abnormalities, and other disorders. Each chapter explores causal agents both external and botanical, the biology and economic significance of these factors, and ideas on prevention and control of disease. Important trees throughout northern Europe are covered, as well as those scheduled for quarantine from outside.