Tree inventory approaches
Each tree is mapped, identified to species, its size is measured and it is evaluated for condition, hazard potential and any maintenance required. This type of inventory is conducted by trained and experienced staff or professional consultants. This approach is ideal since it will help with planning for emerald ash borer (EAB), routine tree maintenance, and new invasive insects or pathogens.
Ash only inventory:
Measure and evaluate only ash trees and their location, size, condition and hazard potential. This strategy is sufficient for planning and managing for EAB but is limited to that. This type of inventory could be done with trained volunteers if necessary.