We Get Kids THINKING About Trees

INVASIVE SPECIES: Asian Longhorn Beetle


Scientific Name: Anoplophora glabripennis

Asian Longhorn Beetle larvae

Asian Longhorn Beetle adult

The Asian Longhorn Beetle (ALB) is a dangerous threat to many types of hardwood trees in the U.S. (See HOST LIST) This 6-legged insect has a shiny black, white-spotted exoskeleton and is about 1″ – 1½” in length. It’s common name derives from its area of origin (Asia) and its distinctively long “horn-like” antennae, which extend longer than the length of its body and striped with black and bluish white bands. This pest may have stowed away within infested wood used as shipping materials to transport goods from the Far East, such as China. Infestations of ALB have been reported in New York, New Jersey, Massachusetts and Illinois, with warehouse sightings Indiana, Ohio, Michigan and Wisconsin.

Being aware of this threat before it devastates massive numbers of trees is only the first step in trying to control it.

Are any of YOUR TREES in danger of ALB?

Get familiar with your trees. Give serious consideration to the advance warnings so you don’t get ‘taken by surprise’ like many Ash tree owners did when Emerald Ash Borer (EAB) came into their towns and cities. Did you know that EAB has already killed HUNDREDS OF MILLIONS of Ash trees in North America*… and they’re still spreading as the Ash tree death toll rises!



Preferred hosts include these hardwood species:

  • Maple (Acer, including Boxelder)
  • Horsechestnut (Aesculus, including Buckeye)
  • Birch (Betula)
  • Willow (Salix)
  • Elm (Ulmus)
    • Occasionally (rarely) the following species have been reported:
      • Mimosa/Silktree (Albizia)
      • Katsura (Cercidiphyllum)
      • Ash (Fraxinus, especially Green Ash – F. pennsylvanica)
      • London Plane tree (Platanus)
      • Poplar (Populus)
      • European Mountain-ash (Sorbus).

Non-host trees: As we learn more about this pest, the lists will be updated, but if you have any of the following species, they are considered “safe” from ALB.

  • Apple (Malus, including Crabapples)
  • Cherry (Prunus, including other stone fruit trees)
  • Oak (Quercus)
  • Softwoods (i.e. Conifers)
    • Fir (Abies)
    • Spruce (Picea)
    • Pine (Pinus)
    • and others

Frass created by Asian Longhorn Beetle

Frass created by Asian Longhorn Beetle.


For the latest information on ALB and how to identify the pest, go to the USDA APHIS: Asian Longhorn Beetle (ALB) website.

*Go to the Emerald Ash Borer Information Network for more details on this national threat.

**HOST LIST was compiled from lists originally created by the Massachusetts Dept. of Agricultural Resources (2012 revision) and USDA APHIS website (2015 update)

Learn here about: Native Trees of Indiana.

Print Friendly, PDF & Email