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The Asian longhorned beetle

PDCNR, Bugwood.com. PDIL, Bugwood.org. The Asian longhorned beetle. ● 3/4 to 1 1/2 inches long ● Glossy black with up to 20 white spots ● Long antennae (1 to 2 1/2 times body length) with distinctive white bands ● Feet with a bluish tinge. PDCNR, Bugwood.com. FEMALE. MALE.

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The Asian longhorned beetle

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  1. PDCNR, Bugwood.com PDIL, Bugwood.org The Asian longhorned beetle ●3/4 to 1 1/2 inches long ●Glossy black with up to 20 white spots ●Long antennae (1 to 2 1/2 times body length) with distinctive white bands ●Feet with a bluish tinge

  2. PDCNR, Bugwood.com FEMALE MALE M. Bohne, Bugwood.org Adults

  3. PDCNR, Bugwood.com Which Beetle is ALB? • Insect A • Insect B • Insect C A B C L. Lazarus, NC Div. of For. Res., Bugwood.org K. Law, USDA APHIS PPQ, Bugwood.org W. Cranshaw, CO State Univ., Bugwood.org

  4. PDCNR, Bugwood.com PDCNR, Bugwood.org PDCNR, Bugwood.org D. Haugen, USDA FS, Bugwood.org Larvae ●2 3/8 inches long, legless ●Cream-colored body ● Brown “shield” behind head ● Brown mouth parts ● Difficult to distinguish from other longhorned beetles

  5. PDCNR, Bugwood.com J. Solomon, USDA FS, Bugwood.org USDA APHIS PPQ, Bugwood.org Which Larva Could Be ALB? • Insect A • Insect B • Insect C A B C

  6. PDCNR, Bugwood.com Cutaway showing egg L. Barber, USDA FS, Bugwood.org Oozing sap D. Haugen, USDA FS, Bugwood.org D. Haugen, USDA FS, Bugwood.org D. Haugen, USDA FS, Bugwood.org Egg niches ●Round to oval shaped ● 3/4-inch diameter

  7. PDCNR, Bugwood.com D. Haugen, USDA FS, Bugwood.org PN DCNR, Bugwood.org Patricia Douglass, USDA APHIS-PPQ Exit holes ● 3/8-inch diameter ●Round shaped ● Should be able to insert the eraser-end of a pencil at least one inch into the hole

  8. PDCNR, Bugwood.com PN DCNR, Bugwood.org T. Denholm, NJ DA, Bugwood.org Patricia Douglass, USDA APHIS-PPQ Exit holes & egg niches

  9. PDCNR, Bugwood.com PN DCNR, Bugwood.org L. Barber, USDA FS, Bugwood.org Frass ● Created by tunneling larvae ●Coarse sawdust ● Accumulates at base of tree and crotches of branches

  10. PDCNR, Bugwood.com L. Barber, USDA FS, Bugwood.org L. Barber, USDA FS, Bugwood.org E.R. Hoebeke, Cornell Univ., Bugwood.org PN DCNR, Bugwood.org Tunneling

  11. PDCNR, Bugwood.com Which Damage is from ALB? • Insect A • Insect B • Insect C A B C R. Anderson, USDA FS, Bugwood.org D. Haugen, USDA FS, Bugwood.org MN DNR, Bugwood.org

  12. PDCNR, Bugwood.com D. Haugen, USDA FS, Bugwood.org S. Katovich, USDA FS, Bugwood.org Which One is Due to ALB? • Tree A • Tree B A B

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