Gypsy Moth in North America - Extensive information on the biology, impact, distribution and management of this exotic insect in North America. Bugwood Network, The University of Georgia - Extensive resource on forest insects and related topics. Brown Spruce Longhorn Beetle - Brief account of this pest of spruce trees, its growth, and means of control. Tent Caterpillars - The Eastern tent caterpillar affects black cherry trees and other fruit and shade trees. The forest tent caterpillar infests hardwood trees such as sugar maple and oak. Gypsy Moth - A short account of this caterpillar pest of maples, oaks and elms. Asian Longhorned Beetle - Brief account of the introduction of this Chinese insect into North America, and with a list of the affected species. Forestry Images - Quality photographs of forest insects and disease organisms. Contains image search or browse by categories. Forest and Shade Tree Pathology - Online textbook, news and upcoming meetings of forest pathology. Invasive and Exotic Species of North America - Provides extensive information on all kinds of invasive species in North America. Key to the Forest Insect Pests of Papua New Guinea - Allows the identification of the most important forest insect pests of Papua New Guinea and includes descriptions of insect signs, preventive measures, bibliographic references and a comprehensive glossary of terms Sudden Oak Death - Provides information on research undertaken at UC Berkeley into this disease which concluded that the pathogen responsible was evolving. Fytofarm Ltd. - Company providing bark beetle control systems and researching insect aggregation pheromones. Saving Hemlocks - Provides information showing how the Sasi predator beetle is an effective biological control method against the hemlock woolly adelgid. Wilt-ism - Research on aspects of fungal wilt diseases in trees. USDA: Forest Health Protection - Technical publications that address specific tree pests and diseases, including identification and control. Identifying and Controlling the Southern Pine Bark Beetles - Factsheet from the Mississippi State University Extension. Emerald Ash Borer - News and information about the tree pest, including tree treatment options, removal and replacement. Focus on Woody Plant Diseases - Information by host plant on diseases and damages affecting trees and perennial flowers from the University of Illinois Extension.