January 29, 2015
College of Computer, Mathematical, and Natural Sciences

Michael Joseph Raupp

Michael Joseph Raupp



Office Phone: 301-405-8478
Fax: 301-314-9290
Office Address: University of Maryland * Entomology Department * Plant Sciences Building * College Park, MD 20742


  • Colloquium in Entomology Entomology 398, Spring l983, Enrollment 6.
  • Advanced Pest Management Entomology 654 with Dively, Marose and Mellors, Spring l983, 1985, enrollment 15 and 10.
  • Extension Entomology Entomology 798F with Davidson, Hellman, Wood, Fall l983, Enrollment 6.
  • Problems in Urban IPM: Mechanisms of Resistance in Ornamental Plants Entomology 798F, Spring 1986. Enrollment 5.
  • Larval Taxonomy Entomology 723 with Wood, Fall 1987. Enrollment 2.
  • Taxonomy of Larval Insects - Entomology 723, Fall 1990. Enrollment 3.
  • Insect pest management - Entomology 798D, Spring 1991. Enrollment 8.
  • Masters thesis research - Entomology 799. 1983 - 2006.
  • Doctoral dissertation research - Entomology 899. 1990 - 2006.
  • Special problems in entomology - Entomology 399. 1991. Enrollment 1.
  • Advanced Entomology - Entomology 699. 1992, 1999, 2000, 2001. Enrollment 1.
  • Insect Pests of Ornamentals and Turf. Entomology 453. 1995;Enrollment 9; 1996 Enrollment 5.
  • General Entomology ENTM 205, BSCI 227. Fall 1997 - 2001 Enrollment 18 - 51.
  • Introductory Biology BIO 101. Spring 1998 with Hellman and Barbosa; Enrollment 250.
  • Introductory Biology BIO 103, Spring 1999, 2000, 2001 with Hellman; Enrollment 200 - 300.
  • World of Biology BSCI 103, Spring 2002 with Hellman, Palmer; Enrollment 200 - 300.
  • World of Biology BSCI 103, Spring 2003, 2004, 2005 with Palmer; Enrollment 280.
  • World of Biology BSCI 103, Spring 2006 with Rees; Enrollment 280.
  • College Park Scholars Colloquium CPSP 218, West Nile Virus, Fall 2000, Enrollment 18.
  • College Park Scholars Colloquium CPSP218, Exotic invasives, Fall 2003, Enrollment 24.
  • Periodical Cicada: A model for extension and outreach, ENTM 789N, Spring 2004,Enrollment 12.
  • Extension and outreach. ENTM 789N, Spring 2005, Enrollment 6.
  • College Park Scholars Colloquium CPSP220, Bugs on bodies, Fall 2006, Enrollment 22.

Graduate Program Affiliations

  • BISI - BISI-Behavior, Ecology, Evolution, & Systematics (BEES)
  • Entomology

Research Interests

The focus of my research program is to elucidate the mechanisms by which plants escape attack from herbivorous insects. These mechanisms include inducible and standing plant defenses and host and habitat mediated interactions with natural enemies. My goal is to create sustainable landscape systems with minimal dependence on synthetic pesticides through the conservation and enhancement of biological diversity with special emphasis on natural enemy communities. Students in my laboratory investigate mechanisms of host plant resistance, the ecology and behavior of herbivores and their predators, parasitoids, and pathogens, and the impact of landscape design on pest and natural enemy population dynamics. As an extension specialist, the focus of my laboratory is to develop and implement integrated pest management programs (IPM) for landscape, nursery and greenhouse systems. We emphasize the use of resistant plant materials, manipulation of cultural regimes, and utilization of biological control. We evaluate biorational pesticides and formulated microbials to determine which materials and techniques are efficacious and minimize disruption to natural enemy communities. My extension programs provide training on the theory and practice of IPM to a diverse clientele that includes growers, public and private sector landscape and park managers, and private citizens. My former students are employed by major universities, government agencies, and the private sector.

Recent Publications

  • Raupp, M.J. 1985. Effects of leaf toughness on mandibular wear in the leaf beetle, Plagiodera versicolora. Ecol. Entomol. 10:73-79.
  • Raupp, M.J., F.R. Milan, P. Barbosa, and B. Leonhardt. 1986. Methylcyclopentanoid monoterpenes mediate interactions among insect herbivores. Science 232:1408-1410.
  • Raupp, M.J., P. Barbosa, and B. Leonhardt. 1986. Mediation of interactions among insect herbivores. Science 234:1588-1589.
  • Raupp, M.J. and C.S. Sadof. 1989. Behavioral responses of a leaf beetle to injury-related changes in its salicaceous host. Oecologia 80:154-157.
  • Raupp, M.J., C.S. Koehler, and J.A. Davidson. 1992. Advances in implementing integrated pest management for woody landscape plants. Annu. Rev. Entomol. 37:561-585.
  • Sadof, C.S. and M.J. Raupp. 1992. Effect of leaf variegation in Euonymus japonica on Tetranychus urticae (Acari: Tetranychidae). Environ. Entomol. 21:827-831.
  • Raupp, M.J. R.G. Van Driesche, and J.A. Davidson. 1993. Biological control of insect and mite pests of woody landscape plants: concepts, agents, and methods. University of Maryland Press, College Park, MD.
  • Raupp, M.J., M.R. Hardin, S.M. Braxton, and B.B. Bull. 1994. Augmentative releases for aphid control on landscape plants. J. Arboric. 20:241-249.
  • Raupp, M.J., P.M. Shrewsbury, J.J. Holmes, and J. A. Davidson. 2001. Plant species diversity and abundance affects the number of arthropod pests in residential landscapes. J. Arboric. 27: 222 229.
  • Raupp, M. J., J.J. Holmes, C.S. Sadof, P.M. Shrewsbury, and J.A. Davidson. 2001. Effects of cover sprays and residual pesticides on scale insects and natural enemies in urban forests. J. Arboric. 27:203 214.
  • Webb, R.A., J.R. Frank, and M.J. Raupp. 2003. Recovery of eastern hemlock from attack by hemlock woolly adelgid following treatment with imidacloprid. J. Arboric. 29: 298-302.
  • Raupp, M.J. I.H. Mars and G. d'Eustachio. 2004. Integrated approaches for managing the boxwood leafminer, Monoarthropalpus flavus. Acta Hort. 630:57-63.
  • Raupp, M.J., R. Webb, A. Szczepaneic, D. Booth, and R. Ahern. 2004. Incidence, abundance, and severity of mites on hemlocks following applications of imidacloprid. J. Arboric. 30:108-113.
  • Lemke, H., M. Raupp, and P. Shrewsbury. 2005. The Efficacy and Costs Associated With the Manual Removal of Bagworms, Thyridopteryx ephemeraeformis, From Leyland Cypress. J. Environ. Hort. 23:123-126.
  • Ahern, R.G., S.D. Frank, and M.J. Raupp. 2005. Comparison of exclusion and imidacloprid for reduction of oviposition damage to young trees by periodical cicadas (Homoptera: Cicadidae). J. Econ. Entomol. 98: 21332136.
  • Raupp, M.J., A. Buckelew Cumming, and E.C. Raupp. 2006. Street tree diversity in Eastern North America and it potential for tree less to exotic borers. J. Arboric. 207-304.
  • Shrewsbury, P.M. and M.J. Raupp. 2006. Do top-down or bottom-up forces determine Stephanitis pyrioides abundance in urban landscapes? Ecological Applications. 16:262-272.
  • Raupp, M.J. 2006. Biology and management of eastern tent caterpillar. Tree care industry 17 (7): 26-32.
  • Szczepaniec, A. and M. J. Raupp. 2007. Residual Toxicity of Imidacloprid to Hawthorn Lace Bug, Corythuca cydoniae, Feeding on Cotoneasters in Landscapes and Containers. Journal of Environmental Horticulture. 25:43-47.
  • Frank, S., R. Ahern, and M.J. Raupp. 2007. Does imidacloprid reduce defoliation by Japanese beetles on linden for more than one growing season? Journal of Arboriculture and Urban Forestry. 33: 392-396.
  • Raupp, M., R. Ahern, B. Onken, R. Reardon , S. Bealmear, J. Doccola, P. Wolfe II, and P. Becker. 2008. Efficacy of foliar applications, trunk injections, and soil drenches in reducing populations of elongate hemlock scale on eastern hemlock. Journal of Arboriculture and Urban Forestry. 34(5): 325-329.
  • Ahern, R. G., D. J. Hawthorne, and M. J. Raupp. 2009. Phylogeography of a specialist insect, Adelges cooleyi: historical and contemporary processes shape the distribution of population genetic variation. Molecular Ecology. 18: 343–356.
  • Ahern, R. G., D. J. Hawthorne, and M. J. Raupp. 2009. Reduced genetic and phenotypic variation in Adelges cooleyi, an insect pest introduced to the eastern United States. Biological Invasions. 11(4): 959-971. 
  • Matheny, A. L., J. Traunfeld, M. J. Raupp, and A. E. Brown. 2009. Gardeners and gardening trends in the United States. Outlooks on Pest Mgt. 20(2):1-6.
  • Davidson, J. A. and M. J. Raupp. 2009. Managing insects and mites on woody plants: An IPM approach. Tree Care Industry. Londonderry, NH. 177 pp. 
  • Davidson, J. A. and M. J. Raupp. 2010.  Second edition. Managing insects and mites on woody plants: An IPM approach. Tree Care Industry. Londonderry, NH. 177 pp.
  • Raupp, M.J., P.M. Shrewsbury, and D.H. Herms. 2010. Ecology of herbivorous arthropods in urban landscapes. Annual Review of Entomology. 55:19-38. [Article]
  • Sargent, C., M. J. Raupp, D. Bean, and A. J. Sawyer. 2010. Dispersal of Emerald Ash Borer within an Intensively Managed Quarantine Zone. Journal of Arboriculture and Urban Forestry. 36: 160-163. [Abstract]
  • Eubanks, M.D., M.J. Raupp, D.L. Finke 2011.  D. Robert F. Denno (1945– 2008): Insect Ecologist Extraordinaire. Annual Review of Entomology. 56:273-292. [Article]
  • Szczepaniec, A. , S. F. Creary, K. L. Laskowski, J.P. Nyrop and M. J. Raupp. 2011. Neonicotinoid insecticide imidacloprid causes outbreaks of spider mites on elm trees in urban landscapes. PLoS ONE 6(5): e20018. doi:10.1371/journal.pone.0020018PloS. ONE. [Article]
  • Raupp, M.J. 2011. Twenty six things that bug me. Barclay Bryan. Port Republic, MD. 30 pp.
  • Raupp,  M.J., Shrewsbury, P.M. and D. H. Herms. In press. Disasters by design: Outbreaks along urban gradients. In:  Insect outbreaks revisited. P. Barbosa, D. Letourneau, and A. Agrawal eds. Wiley-Blackwell, Oxford, UK.
  • Martinson, H., C. Sargent, D. Bean, A. Sawyer, and M. Michael Raupp. In press. Predicting movement risk, and economic impact of emerald ash borer in Maryland. Proceedings of the 21st USDA Interagency research forum on invasive species. Annapolis, MD.


  • Distinguished Achievement Award in Extension, Eastern Branch of the Entomological Society of America, June 1986.
  • Achievement Award, National Association of Counties, for Gypsy Moth IPM, 1989.
  • Colleges of Agriculture and Life Sciences Award of Excellence in Extension, May 1991.
  • Distinguished Achievement Award in Urban Entomology. Eastern Branch of the Entomological Society of America, July 1992.
  • U.S. Department of Agriculture Secretary's Award for Environmental Protection, Urban IPM Team Leader, 1996.
  • President Elect, Eastern Branch of the Entomological Society of America, March 2002.
  • President, Eastern Branch of the Entomological Society of America, March 2003.
  • Past-President, Eastern Branch of the Entomological Society of America, March 2004.
  • CASE District II Award for Web Site News. Gold Award for periodical cicada website. January 2005.
  • CASE District II Award for Specific Media Relations Programs. Cicada Mania. January 2005.
  • Distinguished Achievement Award in Extension, Entomological Society of America, Eastern Branch, 2008
  • Distinguished Achievement Award in Extension, Entomological Society of America, 2009


  • B.S. College of Agriculture and Environmental Science, Cook College, Rutgers University, New Brunswick, NJ in Animal Science in January l975.
  • M.S. Rutgers University, New Brunswick in Entomology in October l977.
  • PhD. University of Maryland, College Park, MD in Entomology in February 1982.