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U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Invasive Pest Risk Maps

European spruce bark beetle - Ips typographus

The European spruce bark, or engraver, beetle is considered to be one of the most destructive pests of spruce on the continent of Europe. The ability to breed in very fresh bark, coupled with the habit of continuing to feed in the bark on completion of development, makes the insect a serious pest of spruce forests.

Sample Areas were developed using the Susceptibility Surface. A total of 1,200 sample areas were assigned to one of four risk categories. Relative certainties were assigned to each category in order to create increasing plot intensifications for increasing risk stratums.

Risk Maps (Contiguous US)
Map Type Map Methods Metadata GIS Grids
Introduction Potential Adobe Acrobat File2MB Adobe Acrobat File266KB Adobe Acrobat File122KB Zip file584KB
Establishment Potential Adobe Acrobat File2MB Adobe Acrobat File219KB Adobe Acrobat File77KB Zip file497KB
Susceptibility Potential Adobe Acrobat File2MB Adobe Acrobat File226KB Adobe Acrobat File142KB Zip file447KB
Survey Sample Area Adobe Acrobat File359KB Adobe Acrobat File942KB Adobe Acrobat File151KB Zip file824KB
Risk Maps (Alaska)
Map Type Map Methods Metadata GIS Grids
Introduction Potential Adobe Acrobat File906KB Adobe Acrobat File930KB Microsoft Word File149KB Zip file81KB
Establishment Potential Adobe Acrobat File1MB Adobe Acrobat File1MB Microsoft Word File378KB Zip file206KB
Susceptibility Potential Adobe Acrobat File1MB Adobe Acrobat File1MB Microsoft Word File458KB Zip file203KB
Forest Species at Risk:

Host species susceptibility (PDF)

Associated Commodities:

Commodities likely associated with Ips typographus (PDF)

Forestry Images:

European spruce bark beetle (Website)