Emerald Ash Borer

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Emerald Ash Borer

• A Serious International Threat to North American
  Forest and Urban Forest Resources

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Ash Range
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Ash As a Resource

• A minor species in many forest types
• 65 species of Ash worldwide
• 16 species in the US
• 5 species attain commercial size and abundance
• 18.5 million board feet harvested annually in
  Michigan

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Establishment

• In the beginnings...

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Ash Densities in Citiesan Important Factor
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Risk of Introduction and Establishment
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The Factors
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The Constraints
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End Product
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How Could This Happen?
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EAB Life Cycle

• Adults emerge from May to July, leaving D-shaped
  exit holes.

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EAB Life Cycle

• Eggs hatch June - August. Larvae feed
  aggressively in the cambium in serpentine
  galleries until Sept. - Oct.

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EAB Potential for Spread

• Natural spread
• Adult flight to susceptible ash trees.
• Artificial spread
• Movement of EAB infested firewood.
• Movement of EAB infested logs.
• Movement of EAB infested nursery stock.
• Other articles of transport etc.

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Estimates suggest that 50 of the Ash in the
infested area are showing signs of decline
Goal designate at least 6 marshalling yards to
collect ash
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Core Zone

• Ideally, most infested wood will be chipped and
  chips burned at a co-gen plant.

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EAB Initial Damage Report

• Infestation 2473 sq miles
• 50 of the ash in the area infested or are
  showing signs of decline
• 650,000 total landscape trees, half of which are
  declining
• 10,631,333 forest trees, half of which are
  declining
• 700 million ash trees in Michigan at risk

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Effects on Organizations

• Michigan Department of Agriculture staff has
  doubled

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Effects on Organizations

• Michigan Department of Agriculture staff has
  doubled
• Natural Resources staff (state funding) is
  essentially static
• Some USDA funds for cooperative efforts for
  restoration and technical assistance
• 1 CFM Forester
• 1 restoration coordinator

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Survey
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Survey
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New Infestations
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New Infestations
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Opportunities for Management
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Opportunities for Management
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FHTET Role 2004

• Location of RAZ
• RAZ Ash Survey Design
• Survey Design
• Photo Acquisition/Interpretation Stage 1 Survey
• Data collection/mgt application
• Data Analysis
• Ash Density Report