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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
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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.
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Risk of ALB Introduction in Wood Packing Material
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Asian Longhorned Beetle (Anaplophora glabripennis) female male 1inch “Starry Sky” Beetle Black with white markings Long antennae with black & white bands Large & robust
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ALB Life Cycle 1. Egg Niche 2. Larva 4. Emergence Hole 5. Adult 3. Pupa
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Larval Feeding Injures Trees Larvae tunnel into sapwood. Die back in ALB infested tree.
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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.
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Repeated ALB Attacks Can Kill Trees Boxelder tree killed by ALB.
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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
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Potential for Widespread Damage to Native Trees is High
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Currently, ALB is known to be established in New York City (1996) & Chicago (1998)
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HGreenpoint-Brooklyn 1996 HAmityville 1996 HBayside-Queens 1998 HManhattan 1999 HIslip 1999 History of ALB Infestation: New York Locations and Year Infestation Detected
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Known ALB Infestation: New York
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Greenpoint-Brooklyn & Manhattan Quarantine Area
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Infested Trees Recent Infestation – Quarantine Infested Trees Recent Infestation – Quarantine
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Amityville Quarantine Area
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Bayside-Queens Quarantine Area
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Islip Quarantine Area
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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
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Chicago Area ALB Infestation
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Ravenswood & Kilbourn Park Infestations
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Addison Quarantine Area
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Summit Quarantine Area
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Park Ridge Quarantine Area
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O’Hare ALB Infestation
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What is being done about ALB in New York & Chicago? Goal ERADICATION Removal & disposal of infested trees Replanting with non-host species
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BeforeAfter Removal of Infested Trees Ravenswood, Illinois
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Replanting Strategies Resistant species Diverse plantings
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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.
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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
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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.
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Asian Longhorned Beetle White-spotted Sawyer Pine Sawyers are Common Native Longhorned Beetles that Resemble ALB
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Cottonwood Borer Asian Longhorned Beetle Another native species often mistaken for ALB
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Will a Healthy Global Economy Lead to the Introduction of More Exotic Beetles?
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