Asian Longhorned Beetle

  • Asian Longhorned Beetle
    Asian Longhorned Beetle
  • Larva stage
    Larva stage
  • Damage to trees from Asian Longhorned Beetle
    Damage to trees from Asian Longhorned Beetle
  • Asian Longhorned Beetle
    Asian Longhorned Beetle

Asian Longhorned Beetle

Anoplophora glabripennis

Order: 
Coleoptera
Family: 
Cerambycidae

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Description

Also referred to as ALB; longhorned beetle, roundheaded borer. Large beetle is black with white spots and has blueish appearing legs; about 1-1.5 in. long (color pattern is opposite cottonwood borer). Antennae are black with white bands. Larvae are white and may grow to 1.5-2 inches long. Beetle has one year lifecycle (in most places).  Learn more here.

Host Plants

Prefers maple, willow, elm, horsechestnut and birch, but feeds on 13 different genera of hardwoods.

Pathway of Introduction and Spread

ZIntroduced from Asia. First found in New York in 1996. Spreads through the movement of wood products and as hitchhikers on vehicles or in cargo.

Symptoms

Larval galleries under the bark, top dieback and out of season yellowing of leaves. Dime-sized (1/4” or larger), perfectly round exit holes in the tree. Frass and sap may be found at exit holes.

Location in Nebraska

No known infestations in Nebraska. Currently found in Massachusetts, New York, Ohio (Fall 2012). Populations have been eradicated in Illinois and New Jersey.

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