1. Minnesota First Detectors Outline Impacts Distribution / Status Biology / Identification PDCNR, Bugwood.com

2. Minnesota First Detectors Hosts SuitabilityGenusCommon name Very goodAcerMaple, boxelder AesculusHorsechestnut, buckeye SalixWillow UlmusElm GoodBetulaBirch PlantanusPlane tree, sycamore OccasionalAlbiziaMimosa, silk tree CeltisHackberry FraxinusAsh PopulusPoplar (excluding cottonwood) SorbusMountain ash http://www.uvm.edu/albeetle/ PDCNR, Bugwood.com

3. Minnesota First Detectors Adult Beetle PDCNR, Bugwood.com Michael Bohne, Forest Service ● 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

4. Minnesota First Detectors Adult Beetle PDCNR, Bugwood.com Michael Bohne, Bugwood.org Female Male

5. Minnesota First Detectors Look-alikes PDCNR, Bugwood.com ALB White-spotted sawyer Michael Bohne, Forest Service

6. Minnesota First Detectors Look-alikes PDCNR, Bugwood.com ALB Michael Bohne, Forest Service Jim Baker, North Carolina State University, Bugwood.org Cottonwood borer

7. Minnesota First Detectors Adult Feeding Damage PDCNR, Bugwood.com Dean Morewood, Health Canada, Bugwood.org Pennsylvania Department of Conservation and Natural Resources – Forestry Archive, Bugwood.org Maturation feeding required – 1-2 weeks

8. Minnesota First Detectors Eggs PDCNR, Bugwood.com Dennis Haugen, USDA Forest Service, Bugwood.org Eggs laid singly in niches chewed by female Hatch in 2 or 3 weeks

9. Minnesota First Detectors Egg Niches PDCNR, Bugwood.com Michael Bohne, Bugwood.org Kenneth R Law, USDA APHIS PPQ, Bugwood.org Range in appearance from slits to oval

10. Minnesota First Detectors Egg Niches PDCNR, Bugwood.com Kenneth R Law, USDA APHIS PPQ, Bugwood.org Mandible marks around outside of niche

11. Minnesota First Detectors Egg Niches PDCNR, Bugwood.com Dennis Haugen, USDA Forest Service, Bugwood.org Sap running from egg niche wounds