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Egg Niches

PDCNR, Bugwood.com. Egg Niches. Range in appearance from slits to oval. Michael Bohne, USDA Forest Service. Kenneth R Law, USDA APHIS PPQ. PDCNR, Bugwood.com. Egg Niches. Mandible marks around outside of niche. Kenneth R Law, USDA APHIS PPQ. PDCNR, Bugwood.com. Egg Niches.

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Egg Niches

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  1. PDCNR, Bugwood.com Egg Niches Range in appearance from slits to oval Michael Bohne, USDA Forest Service Kenneth R Law, USDA APHIS PPQ

  2. PDCNR, Bugwood.com Egg Niches Mandible marks around outside of niche Kenneth R Law, USDA APHIS PPQ

  3. PDCNR, Bugwood.com Egg Niches Sap running from egg niche wounds Michael Bohne, USDA Forest Service

  4. PDCNR, Bugwood.com Larvae Feed beneath bark initially; tunnel into sapwood and heartwood when larger Steven Katovich, USDA Forest Service

  5. PDCNR, Bugwood.com Larvae • Mature larva is 2" long • Legless • Head not visible but mandibles protrude • Lacks spines on tip of abdomen Kenneth R. Law, USDA APHIS PPQ

  6. PDCNR, Bugwood.com Larvae Larvae push frass out of tunnels PA Dept. of Conservation and Natural Resources – Forestry Archive

  7. PDCNR, Bugwood.com Look-alikes Native horntail exit holes on silver maple Dennis Haugen, USDA Forest Service, Whitney Cranshaw, Colorado State University

  8. PDCNR, Bugwood.com Look-alikes Carpenterworm Damage photo - Bob Hammon James Solomon, USDA Forest Service

  9. PDCNR, Bugwood.com Which Beetle is ALB? • Insect A • Insect B • Insect C A B C Kenneth R. Law, USDA APHIS PPQ Joseph Berger Gerald J. Lenhard, Louisiana State Univ.

  10. PDCNR, Bugwood.com James Solomon, USDA Forest Service Which Larva is ALB? • Insect A • Insect B • Insect C A C B Dennis Haugen

  11. PDCNR, Bugwood.com Which Damage is from ALB? • Insect A • Insect B • Insect C B A C Diane Hildebrand, USDA Forest Service MN Dept. of Agriculture Dennis Haugen, USDA Forest Service

  12. Questions? www.beetlebuster.info

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