REPORT the Asian
Longhorned Beetle

Asian Longhorned Beetle

The Asian longhorned beetle threatens our hardwoods. Learn to spot it and report it.

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Photo Credits

The Asian Longhorned Beetle (Anoplophora glabripennis, or ALB) is a threat to America's hardwood trees. With no current cure, early identification and eradication are critical to its control. It currently infests areas in Massachusetts, New Jersey, New York and Ohio. It threatens recreation and forest resources valued at billions of dollars. The ALB has the potential to cause more damage than Dutch elm disease, chestnut blight and gypsy moths combined, destroying millions of acres of America's treasured hardwoods, including national forests and backyard trees.

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QUICK FACTS

Where Is the Threat?

  • Massachusetts, New Jersey, New York and Ohio.

  • Though not yet found in western states, these areas are considered at risk.

  • See Pest Tracker for details >

  • Note: High-risk states for ALB on the Pest Tracker include those that border states currently fighting an ALB infestation or have previously had an infestation, since the movement of infested material could have occurred prior to the insect being detected and regulations being established. In addition, states that have had an interception of ALB, usually in a warehouse setting, are also listed; subsequent surveys in these states resulted in no further detections.

What's at Risk?

  • Maples, including boxelder, red, silver and sugar maple

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  • Birch •

  • Elm •

  • Willow •

  • Ohio buckeye •

  • Horse chestnut •

  • Ash •

  • Poplar

Source of the Threat

  • Firewood •

  • Solid wood packing material •

  • Nursery stock •

  • Wood debris and trimmings •

  • Branches •

  • Logs •

  • Stumps •

  • Lumber •

  • These materials can spread the infestation even if no beetles are visible

Signs and Symptoms

  • Visible Asian longhorned beetles. Adult beetles have bullet-shaped bodies from 3/4 inch to 1-1/2 inches long, shiny black with white spots and long striped antennae, 1-1/2 to 2-1/2 times the size of its body. •

  • A series of chewed round depressions in the bark of a tree •

  • Pencil-sized, perfectly round tree exit holes •

  • Excessive sawdust buildup near tree bases •

  • Unseasonable yellowed or drooping leaves

What You Can Do








What You Can Do

  • Don't move firewood. Larvae and adults can survive hidden in firewood. Remember: buy local, burn local.

  • Don't move regulated material, such as firewood, nursery stock, wood debris or lumber from host trees

  • Inspect your trees. If you see signs or symptoms of infestation, report it immediately.

  • When planting trees in quarantine zones, plant only non-host trees

  • Allow authorized agricultural workers access to property to install and inspect insect-monitoring traps

  • Know and follow the quarantines in your area and learn to leave Hungry Pests behind