When one or more ALB are collected in an area, the survey procedures listed below will be implemented. The host tree identified as infested will serve as the epicenter. All survey protocols will originate from that point.
Intensive Core Survey (Level 1 Survey)
Annually, all host trees within a ½ mile radius of the initial find are surveyed visually. The initial survey is conducted by ground crews. Once visible damage is no longer evident from the ground, Bucket Trucks and Tree Climbers are used to complete the survey within the ½ mile radius. It is recommended that Tree Climbers be used whenever possible and Bucket Trucks be used when needed. If additional infestations are found, the ½ mile core area will be extended from the outermost find.
Delimiting Survey (Level 2 Survey)
All host trees within a minimum of 1-mile beyond the Intensive Core Survey Boundary is surveyed. Biennially, all host trees in the delimiting area are surveyed using ground crews, Bucket Trucks, or Tree Climbers.
The first delimiting survey should be completed within one year of discovering a new infestation that is not associated with the existing ALB regulated area. Subsequent years of delimiting survey will then be completed on a biennial basis.
High Risk Site Detection Survey (Level 3 Survey)
Using investigative work to identify potential high-risk sites where ALB infested materials may have been taken and utilizing interviews, databases, yellow pages, ads, or other potentially valuable sources of information the following sites are identified:
At sites identified above, an annual ground-based visual survey for ALB is to be conducted of 50 to 100 potential host trees surrounding the site. Managers may choose to use Bucket Trucks and Tree Climbers based on the availability of resources. Only trees that are within 1.25 miles of the site are to be included.
If ALB is found, the Intensive Core and Delimiting Survey Protocols will be used to determine the extent of the infestation.
Area Wide Detection Survey (Level 4 Survey)
All one square mile areas within 25 miles of the epicenter of the current ALB infestation, but outside of the regulated area, shall be surveyed at least once every three years in the following manner. Two host trees at each of nine sites per square mile shall be inspected visually from the ground for evidence of ALB infestation. Sites shall be well distributed throughout the square mile block and separated by a minimum of 300 meters. Use a GPS unit, if available, to document locations and other data (see Survey Records section below). Where available, use Township-Range-Section to conveniently define survey blocks. The first area wide survey should be completed within one year of discovering a new infestation that is not associated with the existing regulated areas for ALB.
General Survey Information
The following information applies to all of the surveys listed above:
Note: See Appendix 2 for protocols for inspecting trees, Appendix 3.1-2 for recommended equipment, Appendix 4 for host tree identification aids, and Appendix 5 for pictures of the Asian Longhorned Beetle and associated damage.
For delimiting and high risk site detection surveys, supervisors should ensure that survey crews are routinely challenged with simulated ALB damage, such as false exit holes or pits chipped into the bark (false oviposition sites). Field or lab-collected frass may also be used. These techniques should not be used on a regular schedule, and simulated damage should not be restricted to a specific portion of trees. Location and timing of simulated damage must be carefully documented when it is put into place. The survey crew should be informed that this type of Quality Assurance testing will be ongoing but should not be told where or when it will occur.
Records of all ALB-positive host material will be maintained. These records will include the following:
Records of negative ALB survey for the Intensive Core and Delimiting Survey areas will include the following:
High Risk Site Detection Survey data will include the following:
Area Wide Detection Survey data will include the following:
Data Entry and Management
All data collected by survey crews and from tree removal activities will be collected daily. The data will be:
The data manager will also be responsible for: