Entomology and Plant Pathology

Dr. Tom Royer, Professor & IPM Coordinator

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B.S., Iowa State University, 1978

M.S., South Dakota State University, 1983

Ph.D., Texas A&M University, 1991

tom.royer@okstate.edu

Curriculum vitae

 

Links:

IPM Oklahoma!    ipm.jpg

In-Service Presentations: Canola Insect Management

Teaching:

(Instructor)

ENTO/PLP 3331    Insects of Agronomic Crops

(Guest lecturer)

ENTO/PLP  5513    Biological Control
ENTO/PLP  4923 Applications of Biotechnology in Pest Management
ENTO/PLP  4223 Ecological Methodology
ENTO/PLP  5613           
Host Plant Resistance
ENTO/PLP  3343         
Principles of Plant Pathology

Lab members, students, and collaborators:

Jess Pavlu (Ph.D. 2019)
Brandon Lyons (PhD., 2018) co-chair with Dr. Justin Talley
Beth Ferguson, M.S. 2014
Alissa Berro, M.S. 2012
Carmen Russell, M.S. 2009 (Ag Education)
Jake Doskocil M.S. 2007
Makuena Lebusa, M.S. 2004

Committees: 15 M.S., 4 Ph.D.

Current Assignment:

Extension (90 %):
I am the state coordinator for IPM Oklahoma! ipm.jpgthe Extension program that serves as a resource developing Integrated Pest Management plans for various stakeholders throughout Oklahoma. I am also the extension entomologist for small grains, sorghum and oilseed crops. I developed, in collaboration with Dr. Kris Giles and Dr. Norm Elliott, the "Glance 'n Go" sequential sampling system for greenbugs in winter wheat. I also contributed to the development of the Cereal Aphid Expert System that can assist growers in determining a treatment threshold for greenbugs.  Glance n' Go has been adapted for use on the new iWheat website.  I have also been involved with developing the Sorghum Headworm Sequential Sampling Calculator that can assist growers in determining a treatment threshold for sorghum headworms.

Research (10%):
My interests include aphid and scarab beetle biology, integrated pest management in cereals and row crops, insecticide efficacy, sampling, injury thresholds, insect/plant interactions and biological control of invasive plants.

Professional Activities:

American Institute of Biological Sciences
Entomological Society of America
International Association for the Plant Protection Sciences
Oklahoma Crop Improvement Association
Society of Southwestern Entomologists

Selected Peer Reviewed Publications:

Author:

  • Royer, T.A., B.P. Pendleton, N. C. Elliott, and K.L. Giles, B. Pendleton, and N.C. Elliott.  2015.  Greenbug (Hemptera: Aphididae) biology, ecology and management in wheat and sorghum.  J. Integrated Pest Management (In Press).
  • Royer, T.A., N.C. Elliott, K.L. Giles and S.D. Kindler. 2011. Field efficacy of wintertime insecticide applications against greenbugs, Schizaphis graminum (Rondani) (Hemiptera: Aphididae) on winter wheat (Triticum aestivum L.) Crop Protection 30:826-832.
  • Royer, T.A., K. L. Giles, M.M. Lebusa and M. E. Payton. 2008. Preference and suitability of greenbug, Schizaphis graminum (Hemiptera: Aphididae) parasitized by Lysiphlebus testaceipes (Hymenoptera: Braconidae) as a food source for Coccinella septimpunctata and Hippodamia convergens (Coleoptera: Coccinellidae). Biological Control 47: 82-88
  • Royer, T.A., K.L. Giles, T. Nyamanzi, R. Hunger, E.G. Krenzer, N.C. Elliott, S.D. Kindler, and M. Payton. 2005. Economic evaluation of the effects of planting date and application rate of imidacloprid for management of cereal aphids and barley yellow dwarf in winter wheat. J. Econ. Entomol. 98: 95-102.
  • Royer, T.A. and N. Walker. 2004. Survival of black cutworm larvae and observations on larval predation by Solenopsis molesta in a turfgrass ecosystem. Southwestern Entomol. 29: 31-38.
  • Royer, T.A., K.L. Giles, S.D. Kindler, and N.C. Elliott. 2001. Developmental response of three geographic isolates of Lysiphlebus testaceipes (Cresson) (Hymenoptera: Aphidiidae) to temperature. Environ. Entomol. 30: 637-641
  • Royer, T.A., P.G. Mulder, and G.W. Cuperus. 1999. Renaming (redefining) integrated pest management: fumble, pass, or play? Am. Entomol. 45: 136-139. 

As Co-Author:

  • Bowling, R., E. Maxon, M. Brewer, D.L. Kerns, J. Gordy, N. Seiter, N.C. Elliott, M. Way, T. Royer, S. Biles, J. Thomas, D. Buntin.  2016. Sugarcane aphid (Homoptera: Aphididae): a new pest on sorghum in North America. Journal of Integrated Pest Management. 7 (1): 12; DOI: 10.1093/jipm/pmw011.
  • Kaiser, S.R. and T.A. Royer. 2015. Presence and seasonal occurrence of Pseudacteon spp. (Diptera: Phoridae) in southeastern Oklahoma using modified Puckett trap configurations.  Southwestern Entomologist 40: 691-701
  • Backoulou, G.F., N.C. Elliott, T.A. Royer, K.L. Giles, B.P. McCornack, B.P. Pendleton and M.J. Brewer. 2014. A web based decision support system for headworm management in grain sorghum.  Crop Protection. doi:10.2134/CM-2014-0020-MG
  • Chen, M., S. Wheeler, H. Davis, R. J. Whitworth, A. Knutson, K. L. Giles, T. A. Royer and M. Skinner. 2014. Molecular markers for identification of Hessian fly males caught on pheromone traps. J. Econ. Entomol. 107: 1110-1117
  • Dobhal, S., G. Zhang, T. Royer, J. Damicone and L.M. Ma. 2014.  Survival and growth of foodborne pathogens in pesticide solutions for produce production.  Journal of Food Protection. DOI 10.1002/jsfa.6640
  • Elliott, N.C., G.F. Backoulou, K.L. Giles and T.A. Royer. 2014.  Aphids and parasitoids in wheat and nearby canola fields in central Oklahoma.  Southwest. Entomol. 39: 23-28.
  • Elliott, N.C.  M.J. Brewer, K.L. Giles, G. F. Backoulou, B.P. McCornack, B.B. Pendleton and T.A. Royer. 2014. Sequential Sampling for panicle caterpillars (Lepidoptera: Noctuidae) in sorghum. J. Econ Entomol. 107: 846-853.
  • Michels, G.J, Jr., T.A. Royer, E.N. Jones, R.A. Lange, E.D. Bynum, D.C. Ruthven III, J.L. Tracey and J.B. Bible.  2013.  New establishment and county records for Diorhabda spp. (Coleoptera: Chrysomelidae) and Coniatus splendidulus (Coleoptera: Curculionidae) in the Texas Panhandle and western Oklahoma.  Southwest. Entomol. 38: 173-181.
  • Franke-Dvorak, T. C., Kelsey, K. D., & Royer, T. A. 2010. Is extension still reaching stakeholders? An assessment of minor crop producers' educational needs and use of Cooperative Extension Services. Journal of Agricultural Education, 51(1), 56-64.
  • Chen, M-S, E. Echegaray, R. J. Whitworth, H. Wang, P.S. Sloderbeck, A. Knutson, K.L. Giles and T.A. Royer. 2009. Virulence analysis of Hessian fly populations from Texas, Oklahoma, and Kansas. J. Econ. Entomol. 102: 774-780.
  • Doskocil, J.P., N.R. Walker, S.M. Marek, G.E. Bell, J.A. Reinert and T.A. Royer. 2008. The species composition and seasonal occurrence of Phyllophaga infesting intensely managed bermudagrass in Oklahoma. J. Econ. Entomol:101 1624-16.
  • Elliott, N.C., T.A. Royer, K.L. Giles, S.D. Kindler, D.R. Porter, D.T. Elliott, and D.A Waits. 2004. A web-based decision support system for managing greenbugs in wheat. Crop Management doi. 10.1094/CM-2004-1006-01-MG.
  • Giles, K.L., D. B. Jones, T.A. Royer, N.C. Elliott and S.D. Kindler. 2003. Development of a sampling plan in winter wheat that estimates cereal aphid parasitism levels and predicts population suppression. J. Econ. Entomol. 96: 975-982.
  • Jones, D.B., K.L. Giles, R.C. Berberet, T.A. Royer, N.C. Elliott and M. Payton. 2003. Functional responses of an introduced parasitoid and an indigenous parasitoid on greenbug at four temperatures. Environ. Entomol. 32: 425-432.
  • Kindler, S. D., N.C. Elliott, K. L. Giles, T.A. Royer, R. Fuentes-Granados, and F. Tao. 2002. Effect of greenbugs on winter wheat yield. J. Econ. Entomol 95: 89-95. 

Selected Extension Publications:

  • Royer, T. A., N.C. Elliott and K. L. Giles.  2015. Sampling for sorghum headworms in Oklahoma using the headworm decision support system. EPP-7087. Oklahoma Cooperative Extension Service, Stillwater, OK
  • Royer, T.A., and K.L. Giles.  2015. Caterpillars in small grains. EPP-7094.Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A.  2015. Mites in small grains. EPP-7093. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Lee, Jackie, Gina Peek, Brad Kard, Tom Royer and Kevin Shelton. 2014 . Choosing a Pest Management Professional for Bed Bug Control.  EPP-7332. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Peek, Gina, Jackie Lee and Tom A. Royer.  2014. Preventing Bed Bugs. T-4420. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Hunger, B, R. Kochenower, T. Royer, Jen Olson and Jeff Edwards. 2013. Wheat Streak Mosaic, High Plains Disease and Triticum Mosaic: Three Virus Diseases of Wheat in Oklahoma
  • Royer, T.A. and K.L. Giles. 2011 (revised 2015). Caterpillars in canola. EPP-7089. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Hunger, B., T.A. Royer, J. Edwards and K. Giles. 2011. Effect of planting date and seed treatment on diseases and insect pests of wheat. CR-7088. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T. A., J. Edwards and K. L. Giles. 2009 (Revised 2015). Hessian fly management in Oklahoma winter wheat. EPP-7086. Oklahoma Cooperative Extension Service, Stillwater, OK
  • Royer, T.A. 2014-(revised annualy).  Management of Insect and Mite Pests in Soybean.  CR-7167.  Oklahoma Cooperative Extension Service, Stillwater, OK. 
  • Royer, T.A. 2008-(revised annually). Management of Insect and Mite Pests in Sunflowers. CR-7197. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Franke, Tanya, Kathleen Kelsey and Tom A. Royer. 2009. Pest Management Needs Assessment for Oklahoma Corn Producers. EPP-7080. Cooperative Extension Service, Stillwater, OK
  • Franke, Tanya, Kathleen Kelsey and Tom A. Royer. 2009. Pest Management Needs Assessment for Oklahoma Cotton Producers. EPP-7081. Cooperative Extension Service, Stillwater, OK
  • Franke, Tanya, Kathleen Kelsey and Tom A. Royer. 2009. Pest Management Needs Assessment for Oklahoma Grain Sorghum Producers. EPP-7082. Cooperative Extension Service, Stillwater, OK
  • Franke, Tanya, Kathleen Kelsey and Tom A. Royer. 2009. Pest Management Needs Assessment for Oklahoma Peanut Producers. EPP-7083. Cooperative Extension Service, Stillwater, OK.
  • Franke, Tanya, Kathleen Kelsey and Tom A. Royer. 2009. Pest Management Needs Assessment for Oklahoma Soybean Producers. EPP-7084. Cooperative Extension Service, Stillwater, OK.
  • Franke, Tanya, Kathleen Kelsey and Tom A. Royer. 2009. Pest Management Needs Assessment for Oklahoma Canola Producers. EPP-7085. Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A. and K.L. Giles. 2006-(revised annually). Management of Insect and Mite Pests in Canola. CR-7667. Oklahoma Cooperative Extension Service, Stillwater, OK
  • Royer, T.A. and K.L. Giles. 2006-(revised annually). Management of insect and mite pests in corn. CR-7192.
  • Royer, T.A. and K.L. Giles 2006-(revised annually). Management of Insect Pests in Small Grains. CR-7194. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A. 2006-(revised annually). Management of Insect Pests of Rangeland and Pasture. CR-7193. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A. 2004-(revised annually). Management of Insect and Mite Pests in Sorghum. CR-7170. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Arnold, D, E. Rebek, T.A. Royer P. Mulder, and B. Kard. 2008 (revised). Common Horticultural and Household Insects of Oklahoma. E-918. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Jones, C, E. Bonjour, T. Royer, D. Lalman, J. Edwards. 2007. Storage and use of low test weight and sprouted wheat. CR-1109. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A. and P. G. Mulder. 2004. Grasshopper Management in Rangeland, Pastures and Crops. F-7196. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A. and J.V. Edelson. 2004. Grasshopper Control in Gardens and Landscapes. F-7322. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A., K.L. Giles, S.D. Kindler, and N.C. Elliott. 2003, 2005 (rev). Cereal Aphid Expert System and Glance 'n Go Sampling for Greenbugs: Questions and Answers. CR- 7191. Oklahoma Cooperative Extension Service, Stillwater. OK.
  • Royer, T.A., K.L. Giles and N.C. Elliott. 2002, 2005 (rev). Glance 'n Go Sampling for Greenbugs in Winter Wheat, Spring Edition. L-306. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Royer, T.A., K.L. Giles and N.C. Elliott. 2002, 2005 (rev). Glance 'n Go Sampling for Greenbugs in Winter Wheat, Fall Edition. L-307. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Arnold, D. and T. Royer. 2004 (rev). Plant Galls Caused by Insects. F-7168. Oklahoma Cooperative Extension Service, Stillwater, OK.
  • Friend, E.J., J.P. Kelly, C.W. Friend, T.F. Peeper, K.L. Giles, and T.A. Royer. 2002. Biological control of field bindweed in Oklahoma. PT 2002-22. Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK. 

Personal Information:

Family: Married to Joleen since 1983, who teaches Gifted and Talented at Sangre Ridge Elementary in Stillwater. I have two children, Kelly and Kevin and two grandchildren.

Hobbies: Golf, fishing, scuba, gardening, travel.

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