Minnesota First Detectors

Identifying Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

Identifying Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

General Symptoms

Canopy thinning

Epicormic sprouting

Woodpecker feedingBark cracks

Minnesota First Detectors

Diagnosing Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

Native Ash Borers

Flatheaded borers (Chrysobothris, Dicerca)

Roundheaded borers (Neoclytus, Tylonotus)

Clearwing borers (Podesia)

Ash cambium miner (Phytobia)

Ash bark beetle (Hylesinus)

Ash twig borer (Agrilus subcinctus)

Carpenterworm (Prionoxystus robinae)

William H. Hoffard, USDA Forest Service

Minnesota First Detectors

Agrilus Damage is Found in Many Tree Types

Oak

Birch

Aspen

Honey locust

Walnut

Box elder

Many others

Minnesota First Detectors

Diagnosing Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

Damage – Larval Feeding Tunnels

Minnesota First Detectors

Damage – Larval Feeding Tunnels

Minnesota First Detectors

Damage – Larval Feeding Tunnels

Black ash

Minnesota First Detectors

Damage – Larval Feeding Tunnels

Minnesota First Detectors

Damage – Larval Feeding Tunnels

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage - EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Diagnosing Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

Damage – Adult Emergence Holes

Minnesota First Detectors

Damage – Adult Emergence Holes

Minnesota First Detectors

Damage – Adult Emergence Holes

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Damage – EAB or Not?

Minnesota First Detectors

Diagnosing Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

Life Stages - Larvae

Minnesota First Detectors

Life Stages - Larvae

Minnesota First Detectors

Larvae – EAB or Not?

Minnesota First Detectors

Larvae – EAB or Not?

Minnesota First Detectors

Larvae – EAB or Not?

Minnesota First Detectors

Larvae – EAB or Not?

Minnesota First Detectors

Larvae – EAB or Not?

Minnesota First Detectors

Larvae – EAB or Not?

Minnesota First Detectors

Diagnosing Emerald Ash Borer

General symptoms Canopy thinning Epicormic sprouting Woodpecker feeding Bark cracks

Native Ash Borers Damage

Larval feeding tunnels Adult emergence holes

Life stages Larvae Adults

Minnesota First Detectors

Life Stages – Adults

Minnesota First Detectors

Life Stages – Adults

Minnesota First Detectors

Life Stages – Adults

Minnesota First Detectors

Adults – EAB or Not?

Minnesota First Detectors

Adults – EAB or Not?

Minnesota First Detectors

Adults – EAB or Not?

Minnesota First Detectors

Adults – EAB or Not?