CURRICULUM VITAE
David E Legg

Education

    B.S., Agriculture (major: integrated pest management) University of Missouri (1978)

Professional and educational experience

    Adjunct faculty, Department of Statistics, University of Wyoming (1995 - 2011)
    Associate professor of entomology and systems Analyst, University of Wyoming (1993 - 2003)
    Assistant professor of entomology and systems analysist. Also State Integrated Pest Management Coordinator (1988 - 1993)
    Principal investigator, insect/plant interactions, Kentucky State University (1984 - 1988)
    Consultant to the Thai Department of Agriculture with regards to insect sampling methods and computer use, United Nations Development Programme, Food and Agriculture Organization of the United Nations (July and August, 1987)
    Consultant to the Thai Department of Agriculture with regards to insect sampling methods and computer use, United Nations Development Programme, Food and Agriculture Organization of the United Nations (July, 1986)
    Postdoctoral fellow, Department of Entomology, University of Kentucky (some of 1983 and most of 1984).

Professional memberships and honor societies

Some awards and recognition

    Co-Recipient, Philip C. Stone Outstanding Masters Thesis Award (1980) (Department of Entomology, University of Missouri)
    Biography included in the 49th edition of Marquis "Who's Who in America" (1995)
    Biography included in the 23 rd, 24 th, and 25 th editions of Marquis "Who's Who in the West" (1996, 1997, 1998)
    Outstanding Faculty Award (2000) (University of Wyoming)
    Outstanding Educator Award (2001) (College of Agriculture, University of Wyoming)
    Gamma Sigma Delta Faculty Award of Merit (2002) (College of Agriculture, University of Wyoming)
    John P. Ellbogen Meritorious Classroom Teaching Award (2002) (University of Wyoming)
    Recipient of the North American Colleges and Teachers of Agriculture Teaching Award (2003)

Book Chapters

1. Legg, D. E., and R. D. Moon. 1994. Bias and variability in statistical estimates. pp. 55-69 In L. P. Pedigo and D. Buntin. [eds.] Handbook of Sampling Methods for Arthropod Pests in Agriculture. CRC Press. Boca Raton, Florida. USA. 2. Berry, J. S., J. A. Onsager, W. P. Kemp, T. McNary, J. Larsen, D. Legg, J. A. Lockwood and R. N. Foster. 1996. Assessing rangeland grasshopper populations. pp. VI.10-1 to VI10-12. In G. Cunningham (ed), Grasshopper Integrated Pest Management User Handbook, USDA/APHIS Technical Bulletin 189 3. Legg, D. E., S. M. Van Vleet, J. E. Lloyd, and K. M. Zimmerman. 1998. Calculating lower developmental thresholds of insects from field studies. pp. 163-172 In S. G. Pandalai [ed.] Recent Research Developments in Entomology Vol II. Research Signpost, Trivandrum, India. 4. Legg, D. E. 1998. Binomial sequential sampling of insect popultations. pp. 173-182 In S. G. Pandalai [ed.] Recent Research Developments in Entomology Vol II. Research Signpost, Trivandrum, India. 5. Legg, D. E., and T. L. Archer. 1998. Sampling, economic injury levels, and economic thresholds for the Russian wheat aphid. pp. 313-336 In Quisenberry, S., and F. B. Peairs. (eds), Response model for an introduced pest-the Russian wheat aphid. Proc. Thomas Say Miscellaneous Publication Series of the Entomological Society of America. Lanham, Maryland. 6. Legg, D. E. 2000. Tables of computer-simulated errors for binomial sequential sampling plans. pp. 95-106 In S. G. Pandalai [ed.] Recent Research Developments in Entomology Vol 3. Research Signpost, Trivandrum, India. 7. Legg, D. E. 2002. Sampling. pp. 745-746 In Pimental, D. Encyclopedia of pest management. Marcel Dekker, New York. 8. Legg, D. E. Phenology models for pest management. In Capinera, J. Encyclopedia of Entomology. Kluwer Academic Press (in press). 9. Legg, D. E. 2004. The relevance of modelling in successful implementation of IPM. pp. 39-54 In O. Koul and G. W. Cuperus [eds.] Integrated Pest Management: Potential, Constraints and Challenges, CABI Press, London, UK. 10. Legg, D. E., R. P. Stitt, and S. W. Miller. 2003. Novel uses for sequential sampling methods and resampling techniques when monitoring benthic macroinvertebrate communities. pp. 33-57 In S. G. Pandalai [ed.] Recent Research Developments in Entomology Vo. 4. Research Signpost, Trivandrum, India. 11. Milligan, C., K. J. Reddy, and D. Legg. 2010. Monitoring geochemistry of CBNG produced water outfalls, disposal ponds, and sediments in Powder River Basin, Wyoming. pp. 145 - 185 In K. J. Reddy [ed.] Coalbed Natural Gas: Energy and Environment. Nova Science Inc., New York, USA.

Refereed professional publications

1. Legg, D. E., and H. C. Chiang. 1984. Rubidium marking technique for the European corn borer (Lepidoptera: Pyralidae) in corn. Environmental Entomology 13: 579-583. 2. Legg, D. E., and H. C. Chiang. 1984. European corn borer (Lepidoptera: Pyralidae) infestations: predicting second generation egg masses from blacklight trap captures and relating their abundance to several corn crop characters. Journal of Economic Entomology 77: 1432-1438. 3. Legg, D. E., and H. C. Chiang. 1984. European corn borer (Lepidoptera: Pyralidae) infestations: relating captures in pheromone and black-light traps in southern Minnesota cornfields. Journal of Economic Entomology 77: 1445-1448. 4. Legg, D. E., and A. J. Keaster. 1984. Comparison of day and evening crop rescue strategies to control black cutworm (Lepidoptera: Noctuidae)larvae in corn. Journal of Economic Entomology 77: 757-761. 5. Legg, D. E., and H. C. Chiang. 1985. Within- and among-field distribution of second flight European corn borer (Lepidoptera: Pyralidae) moths in corn. Environmental Entomology 14: 834-841. 6. Legg, D. E., and K. V. Yeargan. 1985. Method for random sampling insect populations. Journal of Economic Entomology 78: 1003-1008. (Forum article) 7. Legg, D. E., K. A. Shufran and K. V. Yeargan. 1985. Evaluation of two sampling methods for their influence on the population statistics of alfalfa weevil (Coleoptera: Curculionidae) larva infestations in alfalfa. Journal of Economic Entomology 78: 1468-1474. 8. Tipping, P. W., R. L. Mikolajczak, J. G. Rodriguez, B. W. Zilkowski, and D. E. Legg. 1985. Attraction of Sitophilus oryzae (L.) and Sitophilus zeamais Motsch. to extracts from two corn genotypes. Journal of the Kansas Entomological Society 59: 190-194. 9. Godfrey, L. D., D. E. Legg, and K. V. Yeargan. 1986. Effects of soil-borne organisms on spring alfalfa establishment in an alfalfa rotation system. Journal of Economic Entomology 79: 1055-1063. 10. Hockensmith, P. E., T. L. Devine, D. E. Legg, and J. G. Rodriguez. 1986. Energy consumption and food utilization of the Indian meal moth (Lepidoptera: Pyralidae) on different corn genotypes. Journal of the Kansas Entomological Society 59: 598-603. 11. Legg, D. E. 1986. An interactive computer program for calculating Bartlett's regression method. North Central Computer Institute Software Journal. 2: 1-23. 12. Legg, D. E., T. C. Schenk, and H. C. Chiang. 1986. European corn borer (Lepidoptera: Pyralidae) oviposition preference and survival on sunflower and corn. Environmental Entomology 15: 631-634. 13. Tipping, P. W., J. G. Rodriguez, C. G. Poneleit, and D. E. Legg. 1986. Feeding activity of Sitophilus zeamais (Coleoptera: Curculionidae) on resistant and susceptible corn genotypes. Environmental Entomology 15: 654-658. 14. Barney, R. J., and D. E. Legg. 1987. Accuracy of a single 30- stem sample for detecting alfalfa weevil larvae (Coleoptera: Curculionidae) and making management decisions. Journal of Economic Entomology 80: 512 - 516. 15. Legg, D. E., R. J. Barney, P. W. Tipping, and J. G. Rodriguez. 1987. Preferred grain quantity and insect density for maize weevil (Coleoptera: Curculionidae) interactions studies. Journal of Economic Entomology 80: 388-393. 16. Legg, D. E., R. J. Barney, P. W. Tipping, and J. G. Rodriguez.1987. Factors influencing the distribution of maize weevil (Coleoptera: Curculionidae) eggs on maize. Environmental Entomology 80: 809-813. 17. Tipping, P. W., K. L. Mikolajczak, J. G. Rodriguez, C. G. Poneleit, and D. E. Legg. 1987. Effects of whole corn kernels and extracts on behavior of maize weevil (Coleoptera: Curculionidae). Journal of Economic Entomology 80: 1010-1013. 18. Legg, D. E., R. J. Barney, and R. J. Kryscio. 1988. Improved sampling plans for detecting alfalfa weevil (Coleoptera: Curculionidae) larva infestations in Kentucky. Journal of Economic Entomology 81: 215-219. 19. Tipping, P. W., J. G. Rodriguez, C. G. Poneleit, and D. E. Legg. 1988. Feeding activity of the maize weevil (Coleoptera: Curculionidae) on two dent corn lines and some of their mutants. Journal of Economic Entomology 81: 830-833. 20. Barney, R. J., and D. E. Legg. 1988. Development and validation of sequential sampling plans for alfalfa weevil (Coleoptera: Curculionidae) larvae using a 6-stem, 100 square-meter subsampling method. Journal of Economic Entomology 81: 658-662. 21. Legg, D. E., and R. J. Barney. 1988. Use of portable computers to assess insect populations in advanced integrated pest management programs: alfalfa weevil as an example. Journal of Economic Entomology 81: 995-999. (Forum article) 22. Tipping, P. W., J. G. Rodriguez, C. G. Poneleit, and D. E. Legg. 1988. Resistance of dent corn inbreds to oviposition by the maize weevil. Journal of the Kansas Entomological Society 61: 131-134. 23. Barney, R. J., D. E. Legg, and C. M. Christensen. 1988. Intersampler variability and scouting for larvae of the alfalfa weevil (Coleoptera: Curculionidae). Transactions of the Kentucky Academy of Science 49: 26-28. 24. Tipping, P. W., D. E. Legg, J. G. Rodriguez, and C. G. Poneleit. 1988. Influence of maize pericarp surface relief on resistance to the maize weevil (Coleoptera: Curculionidae). Journal of the Kansas Entomological Society 61: 237-241. 25. Legg, D. E., and R. J. Barney. 1988. Evaluation of five sequential sampling models for use in an integrated pest management program on the alfalfa weevil (Coleoptera: Curculionidae). Transactions of the Kentucky Academy of Science 49: 89-95. 26. Frey, S. A., and D. E. Legg. 1988. Isolation techniques for surveying the fungi of stored maize. Transactions of the Kentucky Academy of Science 49: 131-139. 27. Barney, R. J., and D. E. Legg. 1989. Conversion factors for use with the shake-bucket technique for sampling alfalfa weevil (Coleoptera: Curculionidae) larvae. Journal of Economic Entomology 82: 825-828. 28. Pitaksa, C., O. Prachuabmoh, and D. E. Legg. 1989. Presence-absence sequential sampling plans for the sugarcane shoot borers. Thai Journal of Agricultural Science 22: 69-76. 29. Nachapong, M., D. E. Legg, S. Kittiboonya, and S. Wangboonkong. 1989. Validation of computer-simulated presence-absence sequential sampling plans for the cotton bollworm (Heliothis armigera) (Hubner)) in cotton. Thai Journal of Agricultural Science 22: 293-302. 30. Tipping, P. W., P. L. Cornelius, D. E. Legg, C. G. Poneleit, and J. G. Rodriguez. 1989. Inheritance of resistance in whole kernel maize to oviposition by the maize weevil (Coleoptera: Curculionidae). Journal of Economic Entomology 82: 1466-1469. 31. Barney, R. J, D. E. Legg, and J. D. Sedlacek. 1989. On-farm grain storage facilities and management practices in Kentucky. Bulletin of the Entomological Society of America 35: 26-33. 32. Legg, D. E., and P. C. Vincelli. 1989. Sugar beet production and pest management practices in the Big Horn Basin of Wyoming. Journal of Sugar Beet Research 26: 17-32. 33. Lockwood, J. A., T. A. Christiansen, and D. E. Legg. 1990. Arthropod prey-predator ratios in a sagebrush habitat: methodological and ecological implications. Ecology. 71: 996-1005. 34. Legg, D. E., R. Kumar, D. W. Watson, and J. E. Lloyd. 1991. Seasonal movement and spatial distribution of the sheep ked (Diptera: Hippoboscidae) on Wyoming lambs. Journal of Economic Entomology 84: 1532-1539. 35. Gray, A. M., D. E. Legg, D. Cooperrider, R. D. Cunningham, K. R. Drake, G. E. Fink, J. R. Gill, M. E. Green, T. E. Heald, R. M. Hybner, S. Knox, J. D. Jenkins, R. S. Murdock, and M. L. Schwope. 1992. Hay contests improve exhibitor knowledge of hay quality. Journal of Natural Resources and Life Sciences Education 21: 48-52. 36. Gray, F. A., M. S. Page, D. E. Legg, and R. L. Hossfeld. 1992. Evaluating alfalfa for field resistance to Verticillium wilt. Production Agriculture 5: 273-278. 37. Page, M. S., F. A. Gray, D. E. Legg, and W. G. Kearl. 1992. Economic impact and management of Verticillium wilt on irrigated alfalfa hay production in Wyoming. Plant Disease. 76: 504-508. 38. Legg, D. E., G. L. Hein, R. M. Nowierski, M. G. Feng, F. B. Peairs, M. Karner, and G. W. Cuperus. 1992. Binomial regression models for spring and summer infestations of the Russian wheat aphid (Homoptera: Aphididae) in the southern and western plains states and Rocky Mountain Region of the United States. Journal of Economic Entomology 85: 1779-1790. 39. Krall, J. M., S. D. Miller, L. E. Bennett, and D. E. Legg. 1993. Russian wheat aphid (Diuraphis noxia) damage in winter wheat (Triticum aestivum) as influenced by downy brome (Bromus tectorum) and fertilizer placement. Weed Technology 7: 670-673. 40. Legg, D. E., R. L. Davis, and J. P. Buk. 1993. AgTiIPS: A customized voice-mail system for delivering lawn, garden, and horticulture information to the public. HortTechnology 3: 245-248. 41. Legg, D. E., J. A. Lockwood, W. P. Kemp, and M. A. Nolan. 1993. Estimating densities of grasshopper (Orthoptera: Acrididae) assemblages using binomial sampling. Environmental Entomology 22: 733-742. 42. Legg, D. E., J. K. Wangberg, and R. Kumar. 1993. Decision support software for implementation of Russian wheat aphid economic injury levels and thresholds. Journal of Agricultural Entomology. 10: 205-213. 43. Legg, D. E., and L. E. Bennett. 1993. Development of a transportable computing system for on-site management of the Russian wheat aphid in wheat. Trends in Agricultural Science 1: 31-39. 44. Brewer, M. J., D. E. Legg, and J. E. Kaltenbach. 1994. Comparison of three sequential sampling plans using Binomial counts to classify insect infestation with respect to decision thresholds. Environmental Entomology 23: 812-826. 45. Johnson, C. D., G. F. Vance, and D. E. Legg. 1994. Selenium in thick spike wheatgrass and yellow sweet clover grown on sludge-amended alkaline mine backfill. Communications in Soil Science and Plant Analysis 25: 2117-2132. 46. Legg, D. E., R. M. Nowierski, M. G. Feng, F. B. Peairs, G. L. Hein, L. R. Elberson, and J. B. Johnson. 1994. Binomial sequential sampling plans and decision support algorithms for managing the Russian wheat aphid (Homoptera: Aphididae) in small grains. Journal of Economic Entomology 87: 1513-1533. 47. Mesbah, A., S. D. Miller, K. J. Fornstrom, and D. E. Legg. 1994. Kochia (Kochia scoparia) and green foxtail (Setaria viridis) interference in sugarbeets. Weed Technology. 8: 754-759. 48. Mesbah, A., S. D. Miller, K. J. Fornstrom, and D. E. Legg. 1995. Wild mustard (Brassica kaber) and wild oat (Avena fatua) interference in sugarbeets (Beta vulgaris L.). Weed Technology 9: 49-52. 49. Legg, D. E., and A. Lockwood. 1995. Estimating densities of grasshopper (Orthoptera: Acrididae) assemblages: an extension of the binomial sampling technique. Journal of the Kansas Entomological Society 68: 178-183. 50. Legg, D. E., and M. J. Brewer. 1995. Relating within-season Russian wheat aphid (Homoptera: Aphididae) population growth in dryland winter wheat to heat units and rainfall. Journal of the Kansas Entomological Society 68: 149-158. 51. Krall, J. M., S. D. Miller, and D. E. Legg. 1995. Influence of alfalfa escapes on estimating spring barley yield. Agronomy Journal 87: 1154-1156. 52. Legg, D. E., J. A. Lockwood, and M. J. Brewer. 1996. Variability in rangeland grasshopper (Orthoptera: Acrididae) counts when using the standard, visualized-sampling method. Journal of Economic Entomology 89: 1143- 1150. 53. Van Tassell, L. W, M. A. Ferrell, B. Yang, D. E. Legg, and J. E. Lloyd. 1997. Producers' attitudes concerning pesticide education. Journal of Natural Resources and Life Science Education 26: 145-148. 54. Legg, D. E., J. M. Struttmann, S. M. Van Vleet, and J. E. Lloyd. 1998. Bias and variability in lower developmental thresholds estimated from field studies. Journal of Economic Entomology 91: 891-898. 55. Van Tassell, L. W., M. A. Ferrell, B. Yang, D. E. Legg, and J. E. Lloyd. 1999. Pesticide practices and perceptions of Wyoming farmers and ranchers. Journal of Soil and Water Conservation 54: 410-414. 56. Krzyszowska-Waitkus, A. J., R. D. Allen, G. F. Vance, R. Zhang, and D. E. Legg. 1999. A field lysimeter study to evaluate herbicide transport in a Wyoming irrigated pasture. Communications in Soil Science and Plant Analysis 30: 245-263. 57. Legg, D. E., S. M. Van Vleet, and J. E. Lloyd. 2000. Simulated predictions of insect phenological events made by using mean and median functional lower developmental thresholds. Journal of Economic Entomology 93: 658-661. 58. Legg, D. E., and B. M. Chen. 2000. Toward fair comparisons of binomial sequential sampling plans. American Entomologist 46: 250-260. (Feature article) 59. Legg, D. E., and J. A. Lockwood. 2001. Binomial sequential sampling plans for rangeland grasshoppers. International Journal of Pest Management 47: 69-73. 60. Schmidtmann, E. T., J. E. Lloyd, Sr., R. J. Bobian, R. Kumar, J. W. Waggoner, Jr. W. T. Tabachnick, and D. E. Legg. 2001. Suppression of mosquito and black fly blood-feeding from hereford cattle and ponies treated with permethrin. Journal of Medical Entomology 38: 728-734. 61. Legg, D. E., S. M. Van Vleet, D. W. Ragsdale, R. W. Hansen, B. M Chen, L. Skinner, and J. E. Lloyd. 2002. Required number of location-years for estimating functional lower developmental thresholds and required thermal summations of insects: first emergence of adult Aphthona nigriscutis Foudras as an example. International Journal of Pest Management 48: 147-154. 62. Legg, D. E., S. M. Van Vleet, D. W. Ragsdale, R. W. Hansen, and J. E. Lloyd. 2002. Phenology models for first emergence of adult Aphthona nigriscutis Foudras (Coleoptera: Chrysomelidae), a biological control agent of leafy spurge, Euphorbia esula L. (Euphorbiaceae). Environmental Entomology 31: 348-353. 63. Lloyd, J. E., E. T. Schmidtmann, R. Kumar, R. J. Bobian, J. W. Waggoner, D. E. Legg, and D. C. Hill. 2002. Suppression of blood feeding by Aedes dorsalis and Ae. Melanimon (Diptera: Culicidae) on cattle treated with Python ear tags. Journal of the American Mosquito Control Association 18: 207-209. 64. Legg, D. E., and M. B. Cohen. 2003. Computer-simulated evaluation of insect phenology models developed in the tropics: Chilo suppressalis (Walker) as an example. International Journal of Pest Management 49: 215-224. 65. Legg, D. E., S. M. Van Vleet, D. W. Ragsdale, R. W. Hansen, L. C. Skinner, T. R. Collier, and J. E. Lloyd. 2003. Roles of bootstrap resampling, measure of central tendency, and method for calculating thermal units when developing phenology models for pest management. International Journal of Pest Management 49: 319-325. 66. Schladweiler, B. K., G. F. Vance, and D. E. Legg. 2004. Influence of variable topsoil depths on soil chemical parameters within a coal mine in northeastern Wyoming. Arid Land Research and Management 18: 347-358. 67. Schladweiler, B. K., G. F. Vance, D. E. Legg, L. C. Munn, and R. Haroian. 2005. Topsoil depth on reclaimed coal mine and native area vegetation in northeastern Wyoming. Journal of Rangeland Ecology and Management 58: 167-176. 68. Smith, D. I., J. A. Lockwood, A. V. Latchininsky, and D. E. Legg. 2006. Changes in non-target arthropod populations following application of liquid bait formulations of insecticides for control of rangeland grasshoppers. International Journal of Pest Management 52: 125-139. 69. Fidgen, J. G., D. E. Legg, and S. M. Salom. 2006. Binomial sequential sampling plan for hemlock wooly adelgid (Hemiptera: Adelgidae) sistens infesting individual eastern hemlock trees. Journal of Economic Entomology 99: 1500-1508. 70. Stitt, R. P., R. W. Rockwell, D. E. Legg, and J. A. Lockwood. 2006. Evaluation of Cinygmula [Ephemeroptera: Heptageniidae] drift behavior as an indicator of aqueous copper contamination. Journal of the Kentucky Academy of Science 67: 102-108. 71. Sbatella, G., S. D. Miller, and D. Legg. 2007. Herbicide impacts on soil seed bank in a sugarbeet rotation. Crop Management (online): 19 January, 2007. 72. Wu, D., and D. Legg. 2007. Structures of benthic insect communities in two southeastern Wyoming (USA) streams: similarities and differences among spatial units at different scales. Hydrobiologia 579: 279-289. 73. Westra, P., R. G. Wilson, S. D. Miller, P. W. Stahlman, G. W. Wicks, P. I. Chapman, J. Withrow, D. Legg, C. Alford, and T. Gaines. 2008. Weed population dynamics after six years under glyphosate- and conventional herbicide-based weed control strategies. Crop Science 48: 1170-1177. 74. Gray, F. A., C. R. Hollingsworth, C. J. Reedy, D. E. Legg, D. W. Koch, and R. W. Groose. 2008. Pathogenicity of fourteen isolates of Phoma sclerotioides causing brown root rot of alfalfa. Canadian Journal of Plant Pathology 30: 285-293. 75. Wu, D., and D. E. Legg. 2009. Relating values of selected benthic macroinvertebrate metrics from D-net to Surber sampler in two southeast Wyoming streams. Journal of the Kentucky Academy of Science 70: 109 - 121. 76. Baker, T. J., S. N. Miller, S. D. Prager, and D. Legg. 2010. Disaggregating human population for improved land use management. Journal of Land Use Science 5: 237 - 257. 77. Mbugwa, G. W., J. M. Krall, and D. E. Legg. 2011. Depth of sowing for 'Laramie' medic (Medicago rigidula) seedlings emergence. Journal of Sustainable Agriculture 35: 624 - 638. 78. Wu, D., and D. E. Legg. 2011. Responses of benthic insect communities to effluent from the abandoned Ferris - Haggarty copper mine in southeast Wyoming. Journal of Environmental Sciences 23: 1901 - 1910. 79. Gatua wa Mbugwa, G. w., J. M. Krall, and D. E. Legg. 2012. Interference of Tifton burclover residues with growth of burclover and wheat seedlings. Agronomy Journal (in press). 80. C. Malherbe, T. N. Holt, J Marquard,D. Legg, K. Cammack, D O’Toole. 2012. Right ventricular hypertrophy with heart failure in Holstein heifers at 1,600 m. Journal of Veterinary Diagnostic Investigation (accepted).

Experiment Station Bulletins and Cooperative Extension Publications

     I have authored, or co-authored 118 of these publications
     



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