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U.S. Forest Service
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United States Department of Agriculture

Invasive Pest Risk Maps

Emerald Ash Borer (EAB) - Agrilus planipennis (Fairmaire)

The emerald ash borer (EAB), Agrilus planipennis, is a highly destructive invasive insect, killing an estimated 50 to 100 million ash trees in Canada and the United States. EAB was first discovered in the U.S., near Detroit, MI in 2002 but is thought to have been introduced to the area several years prior to detection. Since its introduction, a significant amount of time and resources have been devoted to the detection and control of EAB. Despite these efforts, EAB is now distributed throughout 18 states and the District of Columbia, as well as Ontario and Quebec Canada. EAB has the potential to infest ash throughout its entire native range. In addition, funding for managing EAB in the U.S. has been reduced. In the face of budget constraints, managers need tools to help prioritize EAB surveillance and treatment areas.

The Emerald Ash Borer Risk Assessment and Sampling Design project provides an objective and transparent process for selecting EAB trap locations. The goal of the project is to: 1) increase the number of successful EAB detections beyond the known infested area, 2) improve land managers capability to detect EAB closer to the date of a new attack, and 3) to find locations that are best suited to implement controls. The following products were developed by the U.S. Forest Service Forest Health Technology Enterprise Team in co-operation with APHIS PPQ.

Risk Maps (Contiguous US)
Map Type Map Methods Metadata
Detection Likelihood 2002-2013 Adobe Acrobat File 1MB Adobe Acrobat File 1MB Adobe Acrobat File 371KB
Detection Likelihood 2013 Adobe Acrobat File 1MB Adobe Acrobat File 909KB Adobe Acrobat File 370KB
Detection Uncertainty 2002-2013 Adobe Acrobat File 1MB Adobe Acrobat File 728KB Adobe Acrobat File 368KB
Detection Uncertainty 2013 Adobe Acrobat File 1MB Adobe Acrobat File 759KB Adobe Acrobat File 369KB
Risk Assessment 2014 Adobe Acrobat File 1MB Adobe Acrobat File 922KB Adobe Acrobat File 364KB
Survey Sampling Design 2014 Adobe Acrobat File 2MB Adobe Acrobat File 800KB Adobe Acrobat File 118KB
Pest Risk Assessment Information:

National Framework for Emerald Ash Borer (PDF)
USDA APHIS EAB Website
USDA APHIS PPQ 2016 EAB Survey Guidelines (PDF)
Emerald Ash Borer Info
USFS EAB
EAB Preemptive Quarantine Poster (1.74MB PDF)

Forestry Images:
Agrilus planipennis (Website)