Department of Entomology
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    • IPM & Biological Control of Agricultural, Urban & Forest Pests
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    • Insect Camp
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    • Plant Diagnostic Laboratory (PDL)

John Davidson


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Professor Emeritus

Email: jdavids1@umd.edu
Office Phone: 301-405-3927
Fax: 301-314-9290
Office Address: Entomology Department * Plant Sciences Building * University of Maryland * College Park, MD 20742

Graduate Program Affiliations
  • Entomology
Research Interests

My general interests include Integrated Pest Management programs for pests of ornamental plants.  My research interests are the identification, biology, and control of armored scale insects.  Since retiring in 1994, I have concentrated on the production of books.  Currently, I am planning to scan and put online 40 years-worth of insect illustrations (Scientific American style) by F. E. Wood and me.

Recent Publications

  • Davidson, J.A. and M.J. Raupp. 2014. Managing Insects and Mites on Woody Plants: an IPM approach. Third Edition, revised. Tree Care Industry Assoc. Londonderry, NH. 175pp. Illus. 
  • Davidson, J.A. and M.J. Raupp. 2011. Managing Insects and Mites on Woody Plants: an IPM approach. Second Edition, revised. Tree Care Industry Assoc. Londonderry, NH. 195pp. Illus. 
  • Davidson, J.A. and M.J. Raupp. 2009. Managing Insects and Mites on Woody Plants: an IPM approach. Tree Care Industry Assoc. Londonderry, NH. 195pp. Illus. 
  • Gordon, R.D. and J.A. Davidson. 2008. A new prey record and range extension for Hyperaspis paludicola Schwarz and a new prey record for Microweisea misella (LeCont) (Coleoptera:Coccinellidae). Insecta Mundi 0043: 1-2.
  • Miller,D.R., D.J. Williams and J.A. Davidson. 2006. Key to conifer infesting species of Lepidosaphes Shimer worldwide (Hemiptera:Coccoidea:Diaspididae), with descriptions of two new species and a rediscription of L. pallida (Williams). Zootaxa 1362:23-42, Magnolia Press.
  • Miller, D. R. and J. A. Davidson. 2005. Armored Scale Insect Pests of Trees and Shrubs. Cornell Univ. Press. Ithaca, New York, 442pp. Illus.
  • Miller, D. R., Miller, G. L., Hodges, G. S. and J.A. Davidson. 2005. Introduced scale insects (Hemiptera: Coccoidea) of the United States and their impact on U.S. agriculture. Proc. Entomol. Soc. Wash. 107:123-158.
  • Krischik, V. and J. A. Davidson. 2004. IPM (Integrated Pest Management) of Midwest Landscapes. 316 pp. Illustrated. Minnesota Agricultural Experiment Station, SB-07645.
  • Miller, D. R. and J. A. Davidson. 1998. A new species of armored scale Hemiptera: Coccoidea; Diaspididae previously confused with Hemiberlesia diffinis (Newstead). Proc. Entomol. Soc. Wash. 100(2):193-201
  • Davidson, J. A. and M. J. Raupp. 1997, Second Edition, Revised. Landscape IPM guidelines for integrated pest management of insect and mite pests on landscape trees and shrubs. Maryland Cooperative Extension Service. Bull. 350. College Park, MD. 109 pp., Illus.

Education
  • B.A. - 1955 - Columbia Union College, Takoma Pk, MD - Biology Major
  • M.S. - 1957 - University of Maryland, College Pk, MD - Entomology Major
  • Ph.D.- 1960 - University of Maryland, College Pk, MD - Entomology Major

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Department of Entomology 
University of Maryland 
4112 Plant Sciences Building 
College Park, MD 20742-4454
USA

Telephone: 301.405.3911 
Fax: 301.314.9290
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Web Accessibility
  • About
    • At a Glance
    • Welcome From the Chair
    • Code of Conduct
    • Diversity, Equity, and Inclusion >
      • DEI Working Group
      • Resources
    • Departmental History
    • For Alumni
    • Support Entomology >
      • Steinhauer Scholarship Fund
    • Proposal Resources
    • Contact >
      • Directions
  • News
    • News
    • Seminar Blog
    • Seminar Schedule
    • Awards
  • People
    • Faculty
    • Post Docs
    • Students
    • Staff
    • Alumni
  • Academics
    • Graduate >
      • Admissions
      • MS Degree Requirements
      • PhD Degree Requirements
      • Graduate Student Resources
      • Financial Assistance
      • Award & Funding Opportunities
      • Entomology Student Organization
    • Online Masters in Applied Entomology
    • Undergraduate >
      • Entomology Minor
      • Honors Program
  • Research
    • IPM & Biological Control of Agricultural, Urban & Forest Pests
    • Ecology, Conservation, Restoration, Climate Change >
      • Pollinator Science and Apiculture
    • Evolution, Systematics and Evo-Devo
    • Genetics & Genomics and Medical Entomology
  • Extension/Outreach
    • Educational Outreach
    • Insect Camp
    • Insect Drawings
    • Insect Identification
    • Pesticide Education and Assessment Program
    • Plant Diagnostic Laboratory (PDL)