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Research ArticleArticles

Community Ash Densities and Economic Impact Potential of Emerald Ash Borer (Agrilus planipennis) in Four Midwestern States

T. Davis Sydnor, Matthew Bumgardner and Sakthi Subburayalu
Arboriculture & Urban Forestry (AUF) March 2011, 37 (2) 84-89; DOI: https://doi.org/10.48044/jauf.2011.012
T. Davis Sydnor
T. Davis Sydnor (corresponding author), Professor of Urban Forestry, School of Environment and Natural Resources, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210, U.S.
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Matthew Bumgardner
Matthew Bumgardner, Research Forest Products Technologist, USDA Forest Service, 359 Main Road, Delaware, OH 43015, U.S.
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Sakthi Subburayalu
Sakthi Subburayalu, Post-doctoral Researcher, School of Environment and Natural Resources, The Ohio State University, Columbus, OH U.S.
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Article Figures & Data

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    Table 1.

    State and total response rates plus population estimates based on 2000 Census data.

    StateNumber of responsesResponse rate (%)Proportion of population (%)Population (2000 Census)
    IL4020.9  9.412,419,660
    IN  622.2  6.9  6,080,485
    MI2521.2  6.3  9,938,492
    WI5020.023.4  5,363,708
    Overall123z21.010.533,802,345
    • ↵zState was unknown for two responses.

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    Table 2.

    Numbers of ash trees as street, park, and private trees per 1,000 residents as reported by the responding communities. Estimated total numbers of ash street, park, and private trees in four Midwest states adjusted for total population.

    ItemStreet Tree AshPark AshPrivate Ash
    Median ash/1,000 residents51.48.4156.1
    Mean/1,000 residents60.029.9331.7
    Standard deviation52.463.9469.2
    90% Confidence interval51.7, 68.219.2, 40.7238.2, 425.2
    Number of Responses1119770
    Four-state Tree Totals z (Median-based)1,737,441283,9405,276,546
    Four-state Tree Totals y (Mean-based)2,028,1411,010,69011,212,238
    • ↵zMedian-based totals = median trees per 1,000 residents * (four-state population/1,000 residents)

    • ↵yMean-based totals = mean trees per 1,000 residents * (four-state population/1,000 residents)

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    Table 3.

    Median prices in dollars for tree and stump removal costs by state, and a four-state median for five sizes of tree.

    StateMedian Tree & Stump Removal Costs
    0–30 cm30–61 cm61–76 cm76–91 cm> 91 cm
    Illinois (n = 8)$270$515$848$1,230$1,859
    Indiana (n = 8)$156$338$613$893$1,305
    Michigan (n = 9)$215$440$650$950$1,500
    Wisconsin (n = 7)$144$348$565$855$1,500
    Four-state median (n = 32)$184$413$670$1,048$1,563
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    Table 4.

    Median base prices and replacement costs for four states and the four-state median.

    StateBasic PriceReplacement Cost
    Illinois (n = 2,6)$3,136$393
    Indiana (n = 1,4)$2,200$425
    Michigan (n = 5,8)$4,276$345
    Wisconsin (n = 4,7)$2,173$300
    Four-state median (n = 12,25)$2,539$365
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    Table 5.z

    Potential losses per 1,000 residents in dollars (to the nearest dollar) giving mean and median values for landscape value, tree removal costs, and replacement costs. Street, park, and public trees are given separately as are the totals for each.

    Landscape ValuesTree Removal CostsReplacement Costs
    (median-based)(mean-based)(median-based)(mean-based)(median-based)(mean-based)
    Street Trees    $54,792    $63,960    $21,228    $24,780    $18,761    $21,900
    Park Trees    $7,468    $26,581    $2,780    $9,897    $3,066    $10,914
    Private Trees    $166,403    $353,592    $64,469    $136,992    $56,976    $121,071
    Total    $228,663    $444,133    $88,477    $171,669    $78,803    $153,885
    • ↵zTable 3 and Table 4 are presented primarily to enable communities to modify estimates of potential economic impacts of EAB for their community.

    • View popup
    Table 6.

    Potential region-wide losses in millions of dollars (to the nearest million) giving mean and median values for landscape value, tree removal costs, and replacement costs. Street, park, and private trees are provided separately as are totals.

    Landscape ValuesTree Removal CostsReplacement Costs
    (median-based)(mean-based)(median-based)(mean-based)(median-based)(mean-based)
    Street Trees    $1,852    $2,162    $718    $838    $634    $740
    Park Trees    $252    $899    $94    $335    $104    $369
    Private Trees    $5,625    $11,952    $2,179    $4,631    $1,926    $4,092
    Total    $7,729    $15,013    $2,991    $5,804    $2,664    $5,201
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Arboriculture & Urban Forestry (AUF): 37 (2)
Arboriculture & Urban Forestry (AUF)
Vol. 37, Issue 2
March 2011
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Community Ash Densities and Economic Impact Potential of Emerald Ash Borer (Agrilus planipennis) in Four Midwestern States
T. Davis Sydnor, Matthew Bumgardner, Sakthi Subburayalu
Arboriculture & Urban Forestry (AUF) Mar 2011, 37 (2) 84-89; DOI: 10.48044/jauf.2011.012

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Community Ash Densities and Economic Impact Potential of Emerald Ash Borer (Agrilus planipennis) in Four Midwestern States
T. Davis Sydnor, Matthew Bumgardner, Sakthi Subburayalu
Arboriculture & Urban Forestry (AUF) Mar 2011, 37 (2) 84-89; DOI: 10.48044/jauf.2011.012
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Keywords

  • Agrilus planipennis
  • Ash Tree Density
  • Cost of Ash Tree Removal/Replacement
  • economic impact
  • emerald ash borer
  • EAB
  • Fraxinus
  • green ash
  • survey
  • white ash

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