Minnesota First Detectors

Outline

Impacts

Distribution / Status

Biology / Identification

PDCNR, Bugwood.com

Minnesota First Detectors

Hosts

Suitability Genus Common name

Very good Acer Maple, boxelder

Aesculus Horsechestnut, buckeye

Salix Willow

Ulmus Elm

Good Betula Birch

Plantanus Plane tree, sycamore

Occasional Albizia Mimosa, silk tree

Celtis Hackberry

Fraxinus Ash

Populus Poplar (excluding cottonwood)

Sorbus Mountain ash

http://www.uvm.edu/albeetle/

PDCNR, Bugwood.com

Minnesota First Detectors

Adult BeetlePDCNR, 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

Minnesota First Detectors

Adult BeetlePDCNR, Bugwood.com

Michael Bohne, Bugwood.org

Michael Bohne, Bugwood.org

Female Male

Minnesota First Detectors

Look-alikesPDCNR, Bugwood.com

ALB

White-spotted sawyer

Michael Bohne, Forest Service

Minnesota First Detectors

Look-alikesPDCNR, Bugwood.com

ALBMichael Bohne, Forest Service

Jim Baker, North Carolina State University, Bugwood.org

Cottonwood borer

Minnesota First Detectors

Adult Feeding DamagePDCNR, 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

Minnesota First Detectors

EggsPDCNR, Bugwood.com

Dennis Haugen, USDA Forest Service, Bugwood.org

• Eggs laid singly in niches chewed by female

• Hatch in 2 or 3 weeks

Minnesota First Detectors

Egg NichesPDCNR, Bugwood.com

Michael Bohne, Bugwood.orgKenneth R Law, USDA APHIS PPQ, Bugwood.org

• Range in appearance from slits to oval

Minnesota First Detectors

Egg NichesPDCNR, Bugwood.com

Kenneth R Law, USDA APHIS PPQ, Bugwood.org

• Mandible marks around outside of niche

Minnesota First Detectors

Egg NichesPDCNR, Bugwood.com

Dennis Haugen, USDA Forest Service, Bugwood.org

• Sap running from egg niche wounds