1 / 38

Emerald Ash Borer: The Basics

Emerald Ash Borer: The Basics. Jodie Ellis Department of Entomology Purdue University. Agrilus planipennis Fairmaire (Coleoptera: Bupestridae). ½ inch. Emerald ash borer.

shalin
Download Presentation

Emerald Ash Borer: The Basics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Emerald Ash Borer: The Basics Jodie Ellis Department of Entomology Purdue University

  2. Agrilus planipennis Fairmaire (Coleoptera: Bupestridae) ½ inch Emerald ash borer

  3. In North America, EAB is a Primary Pest of North American ash trees, attacking and killing healthy ash trees within 1-3 years. It is estimated that EAB has killed nearly 30 million ash trees in North America so far.

  4. EAB’s Native Range

  5. In Asia: • EAB has co-evolved with Asian ash trees. • 2. There are natural enemies and pathogens that keep EAB levels low. • In North America: • EAB has NOT co-evolved with North American ash trees. • 2. North American natural enemies and pathogens don’t recognize EAB.

  6. How Does EAB Harm Trees?

  7. Frass • Newly hatched larvae bore through bark and feed on the tree’s vascular tissue. • As they grow, larvae zigzag through tree tissue, leaving S-shaped tunnels that are flat and wide.

  8. Heavy EAB infestations kill ash trees quickly – within 1 to 3 years.

  9. Types of ash attacked Types of ash (Fraxinus spp.) attacked by EAB: Green ash White ash Blue ash All native North American ash and all horticultural cultivars of ash are vulnerable to EAB. Black ash

  10. EAB Risk Map

  11. How EAB Spreads • Natural spread of EAB is local (~ 1/2 mile per year). • Artificial or human-assisted spread moves the beetle much farther and faster in a less predictable manner.

  12. Since EAB arrived here, it has been moved in: • firewood • raw wood with bark • dunnage and crating for heavy goods • nursery stock • lumber and wood with bark attached

  13. Signs and Symptoms of EAB

  14. Thinning of Upper Third of Canopy The canopy continues to decline until the tree eventually dies. James W. Smith

  15. Epicormic Shoots Develop below dying portions of the trunk. 

  16. D-Shaped Exit Holes

  17. S-Shaped Larval Feeding Galleries Frass-filled, zigzagging tunnels.

  18. Vertical Splits in Bark

  19. Woodpecker Activity Woodpecker activity is an ‘early warning sign’ of EAB.

  20. Where Is EAB?

  21. The red dots indicate sites where EAB has been detected.

  22. How Do We Know Where EAB Is? The Old-Fashioned Way: Preparing an EAB detection tree

  23. Purple Panel Traps

  24. This year, USDA APHIS set out over 60,000 purple panel traps in 48 states.

  25. Quarantines

  26. State and Federal Level Quarantines Quarantines at both State and Federal levels are designed to slow the movement of regulated ash material that might contain EAB to uninfested areas.

  27. Regulated Items • The living insect itself • Entire ash trees • Ash limbs, branches • Cut firewood (ANY TYPE except pine) • Logs or untreated ash lumber with bark • Uncomposted ash chips greater than 1 inch in diameter • Any article presenting risk of spread

  28. State Level Quarantines

  29. The Federal Level Quarantine USDA APHIS PPQ prohibits the movement of ash material including all types of hardwood firewood out of any quarantined state or area.

  30. Under the Federal quarantine, regulated ash material may not be freely moved between quarantined states, even when they are contiguous to each other.

  31. Violations of EAB quarantines may result in severe penalties including heavy fines, and in severe cases, criminal charges.

  32. For More Information On EAB

  33. For Regional Information on EAB, visit: www.emeraldashborer.info

  34. For Information on EAB from USDA APHIS, visit: www.aphis.usda.gov/plant_health/plant_pest_info or call toll-free 1-866 322-4512

  35. Questions?

More Related