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Emerald Ash Borer Introduction

The Emerald Ash Borer (EAB) is an exotic pest that poses a serious threat to ash trees of all sizes and conditions in Minnesota. Its presence is often difficult to detect, leading to devastating damage. This guide discusses the importance of early detection, mitigation strategies, and prevention measures to slow the pest's spread. It also outlines known EAB-infested areas, signs of infestation, and how communities can report suspicious activity. Protect Minnesota's ash trees by staying informed and taking action.

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Emerald Ash Borer Introduction

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  1. Emerald Ash Borer Introduction 2010 Minnesota Community Preparedness Workshops

  2. Why is EAB Important? • Exotic pest • Difficult to detect • Destroys ash trees • All sizes, conditions and species • Limited control options • Highest volume of ash Photo of EAB by David Cappaert, Michigan State University

  3. Where is EAB?

  4. Known EAB-infested Areas in Minnesota Minnesota map 4/30/10 Wisconsin Iowa

  5. EAB Life Cycle David Cappaert, MSU

  6. How Does EAB Kill Trees?

  7. ~1/8 inch wide Suspicious Symptoms Diagnostic Signs General Symptoms S-shaped galleries Bark cracks Canopy thinning EAB Larva Woodpecker feeding Epicormic sprouting D-shaped exit holes

  8. What Can We Do About EAB? • Mitigation: • Slow its rate of spread • Early detection: • Find it as early as possible • Prevention: • Keep it from moving

  9. Components of Mitigation Sink trees Removal Pesticides Phloem reduction

  10. Methods of Early Detection Purple traps Visual surveys Citizen reports Tree sampling

  11. Prevention: Quarantines and Wood Disposal • Hennepin, Ramsey and • Houston counties • Prohibits movement of: • Ash material • Hardwoodfirewood • Ash debris must be disposed of or treated within the quarantine • No restrictions outside the quarantine boundaries.

  12. To report a suspect emerald ash borer • 1. First, go to MDA’s website: www.mda.state.mn.us and follow “Do I Have EAB?” checklist. Then • 2. E-mail: Arrest.The.Pest@state.mn.us or • 3. Phone:"Arrest the Pest" line651-201-6684 - Metro area888-545-6684 - Greater Minnesota

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