The Asian Longhorned Beetle An Introduced Pest of Urban and Suburban Trees in North America by James E. Zablotny, Ph.D Deborah G. McCullough, Ph.D Michigan.

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Presentation transcript:

The Asian Longhorned Beetle An Introduced Pest of Urban and Suburban Trees in North America by James E. Zablotny, Ph.D Deborah G. McCullough, Ph.D Michigan State University and Dennis Haugen, Ph.D., USDA Forest Service

Where is the ALB from? China Korea ALB is a significant pest of hybrid poplars in China. } ALB was introduced into North America from infested wooden packing material.

Risk of ALB Introduction in Wood Packing Material

Asian Longhorned Beetle (Anaplophora glabripennis) female male 1inch “Starry Sky” Beetle Black with white markings Long antennae with black & white bands Large & robust

ALB Life Cycle 1. Egg Niche 2. Larva 4. Emergence Hole 5. Adult      3. Pupa

Larval Feeding Injures Trees Larvae tunnel into sapwood. Die back in ALB infested tree.

Large emergence holes on branches or the stem (>3/8” diam). Symptoms of ALB Infestation Flagging & dieback in the canopy. Sawdust accumulates at branch crotches or tree base.

Repeated ALB Attacks Can Kill Trees Boxelder tree killed by ALB.

Prefers: Maples (Acer species). Will also infest: Horsechestnut (Aesculus hippocastanum), Elms (Ulmus spp.), Birches (Betula spp.), Willows (Salix spp.), Poplars (Populus spp.), and many others. Hosts of ALB

Potential for Widespread Damage to Native Trees is High

Currently, ALB is known to be established in New York City (1996) & Chicago (1998)

HGreenpoint-Brooklyn 1996 HAmityville 1996 HBayside-Queens 1998 HManhattan 1999 HIslip 1999 History of ALB Infestation: New York Locations and Year Infestation Detected

Known ALB Infestation: New York

Greenpoint-Brooklyn & Manhattan Quarantine Area

Infested Trees  Recent Infestation – Quarantine Infested Trees  Recent Infestation – Quarantine

Amityville Quarantine Area

Bayside-Queens Quarantine Area

Islip Quarantine Area

History of ALB Infestation: Chicago HRavenswood 1998 HAddison 1998 H Summit 1998 H Kilbourn Park 1999 HPark Ridge 1999 HO’Hare Airport 2000 Locations and Year Infestation Detected

Chicago Area ALB Infestation

Ravenswood & Kilbourn Park Infestations

Addison Quarantine Area

Summit Quarantine Area

Park Ridge Quarantine Area

O’Hare ALB Infestation

What is being done about ALB in New York & Chicago? Goal  ERADICATION Removal & disposal of infested trees Replanting with non-host species

BeforeAfter Removal of Infested Trees Ravenswood, Illinois

Replanting Strategies Resistant species Diverse plantings

What Should You Do if You Find A Suspect Beetle? Capture at least 1 adult beetle. Preserve in 70% rubbing alcohol. Take beetle to professional entomologist for identification.

Where Can You Take Beetles for Identification? County Extension Office State Department of Agriculture State Department of Natural Resources University Plant Pest Diagnostic Clinic USDA Forest Service Office

Remember, Some Native Beetles are Similar to ALB Many native wood- boring beetles are black & white with long antennae An entomologist can assist with identification of suspect beetles.

Asian Longhorned Beetle White-spotted Sawyer Pine Sawyers are Common Native Longhorned Beetles that Resemble ALB

Cottonwood Borer   Asian Longhorned Beetle Another native species often mistaken for ALB

Will a Healthy Global Economy Lead to the Introduction of More Exotic Beetles?