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Research ArticleArticles

Efficacy of Foliar Applications, Trunk Injections, and Soil Drenches in Reducing Populations of Elongate Hemlock Scale on Eastern Hemlock

Michael Raupp, Robert Ahern, Brad Onken, Richard Reardon, Stacey Bealmear, Joseph Doccola, Paul Wolfe II and Peter Becker
Arboriculture & Urban Forestry (AUF) September 2008, 34 (5) 325-329; DOI: https://doi.org/10.48044/jauf.2008.044
Michael Raupp
Michael Raupp (corresponding author), Department of Entomology, University of Maryland, College Park, MD 20742, U.S.,
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  • For correspondence: [email protected]
Robert Ahern
Robert Ahern, 204 Center for Integrated Plant Systems, Michigan State University, East Lansing, MI 48824, U.S.
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Brad Onken
Brad Onken, USDA Forest Service, Northeastern Area Forest Health Protection, 180 Canfield Street, Morgantown, WV 26505, U.S.
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Richard Reardon
Richard Reardon, USDA Forest Service, Forest Health Technology Enterprise Team, 180 Canfield Street, Morgantown, WV 26505, U.S.
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Stacey Bealmear
Stacey Bealmear, Yuma County Cooperative Extension, 2200 West 28th Street, Suite 102, Yuma, AZ 85364-6936, U.S.
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Joseph Doccola
Paul Wolfe II, Integrated Plant Care, Inc., 2279 Lewis Avenue, Rockville, MD 20851, U.S.
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Paul Wolfe II
Joseph Doccola, Arborjet, 99 Blueberry Hill Road, Woburn, MA 01801, U.S.
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Peter Becker
Peter Becker, F.A. Bartlett Tree Expert Co., 2950-C Industrial Park Drive, Finksburg, MD 21048, U.S.
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LITERATURE CITED

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    1991. Adelgid and scale insect guilds on hemlock and pine, pp. 256–270. In: Baranchikov, Y.N., W.J. Mattson, F.P. Hain, and T.L. Payne (Eds.). Forest Insect Guilds: Patterns of Interaction With Host Trees. 13–17 August 1989; Abakan, Siberia, U.S.S.R. Gen. Tech. Rep. NE-153. U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station, Radnor, PA.
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    1977c. Parasitism of the scale, Fiorinia externa (Homoptera: Diaspididae) by Aspidiotiphagus citrinus (Hymenoptera: Eulophidae) in hemlock: Density dependence. Environmental Entomology 6: 551–555.
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    1. McClure, M.S.
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    1. McClure, M.S., and
    2. M.B. Fergione
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    1. Rebek, E.J., and
    2. C.S. Sadof
    . 2003. Effects of pesticide applications on the euonymus scale (Homoptera: Diaspididae) and its parasitoid, Encarsia citrina (Hymenoptera: Aphelinidae). Journal of Economic Entomology 96: 446–452.
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    1. Sadof, C.S., and
    2. D.C. Sclar
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    1986. Aspidiotus cryptomeriae, an armored scale pest. Regulatory Horticulture 12: 21–22.
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    1. Stimmel, J.F.
    2000. Abgallaspis ithacae (Ferris) Homoptera: Diaspididae. Regulatory Horticulture 26: 15–17.
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    1. Wallner, W.E.
    1962. A field test with insecticides to control the scale Fiorinia externa on Canadian hemlock. Journal of Economic Entomology 55: 798–799.
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    1. Zar, J.
    1999. Biostatistical Analysis. 4th Ed. Prentice Hall, Upper Saddle River, NJ. 663 pp.
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Arboriculture & Urban Forestry (AUF): 34 (5)
Arboriculture & Urban Forestry (AUF)
Vol. 34, Issue 5
September 2008
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Efficacy of Foliar Applications, Trunk Injections, and Soil Drenches in Reducing Populations of Elongate Hemlock Scale on Eastern Hemlock
Michael Raupp, Robert Ahern, Brad Onken, Richard Reardon, Stacey Bealmear, Joseph Doccola, Paul Wolfe, Peter Becker
Arboriculture & Urban Forestry (AUF) Sep 2008, 34 (5) 325-329; DOI: 10.48044/jauf.2008.044

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Efficacy of Foliar Applications, Trunk Injections, and Soil Drenches in Reducing Populations of Elongate Hemlock Scale on Eastern Hemlock
Michael Raupp, Robert Ahern, Brad Onken, Richard Reardon, Stacey Bealmear, Joseph Doccola, Paul Wolfe, Peter Becker
Arboriculture & Urban Forestry (AUF) Sep 2008, 34 (5) 325-329; DOI: 10.48044/jauf.2008.044
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Keywords

  • Acephate
  • Dinotefuran
  • Fiorinia externa
  • horticultural oil
  • Imidacloprid
  • plant health care
  • pyriproxyfen
  • systemic insecticides

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