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

United States Department of Agriculture

Invasive Pest Risk Maps

Sirex Woodwasp - Sirex noctilio

Sirex woodwasp (Sirex noctilio) has been the most common species of exotic woodwasp associated with solid wood packing materials detected at United States Ports-of-entry. Detections of Sirex noctilio in the Conterminous United States outside of port areas have raised concerns as this insect has the potential to cause significant mortality of pines.

Sirex noctilio 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 File 2MBAdobe Acrobat File 2MB Adobe Acrobat File 115KB Zip file 775KB
Establishment Potential Adobe Acrobat File 2MB Adobe Acrobat File 2MB Adobe Acrobat File 64KB Zip file 814KB
Susceptibility Potential Adobe Acrobat File 2MB Adobe Acrobat File 2MB Adobe Acrobat File 126KB Zip file 602KB
Survey Sample Area Adobe Acrobat File 3MB Adobe Acrobat File 3MB Adobe Acrobat File 133KB Zip file 846KB
Pest Risk Assessment Information:

Pest Alert (PDF)

Forest Species at Risk:

Host species susceptibility (PDF)

Associated Commodities:

Commodities likely associated with Sirex noctilio (PDF)

Forestry Images:

Sirex Woodwasp (Website)