Scolytus intricatus

European Oak Bark Beetle - Scolytus intricatus Ratzeburg

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European Oak Bark Beetle
Introduction of European oak bark beetle into North America would probably have its greatest impact on the eastern hardwood-dominated forests. In Europe, this bark beetle feeds on branches and secondary shoots of various hardwood species, including oaks (Quercus), chestnuts (Castanea), beech (Fagus), birch (Betula), poplars (Populus), willows (Salix), and elms (Ulmus) (USDA APHIS & Forest Service, 2000). The insect targets recently dead, felled, and stressed trees. The beetle has been found to vector a wide variety of fungi, including pathogenic species. Dunnage is the primary vector for the European oak bark beetle, and establishment potential is considered high if introduced (USDA APHIS & Forest Service 2000).

Sources
United States Department of Agriculture Animal and Plant Health Inspection Service and Forest Service 2000. Pest Risk Assessment for Importation of Solid Wood Packing Materials into the United States. USDA APHIS and Forest Service. August 2000.