Publications and Presentations
Michael B. Hildreth
Departments of Veterinary Science and Biology & Microbiology

 

PUBLICATIONS IN A REFEREED FORUM (JOURNALS/BOOKS):

  1. Hildreth, M.B., W.B. Epperson, and K.J. Mertz 2007. Effect of longitude and latitude on fecal egg and oocyst counts in cow-calf beef herds from the United States Northern Great Plains. Vet. Parasitol. In Press
  2. Harmon, A.F., Z.B. Williams, L.D. Holler, and M.B. Hildreth. 2007. Comparison of three different preservatives for morphological and Real-time PCR analyses of Haemonchus contortus eggs. Vet. Parasitol. 145(3-4):361-5.
  3. Harmon, A.F. Z.B. Williams, D.S. Zarlengac and M.B. Hildreth. 2007. Real-Time PCR for quantifying Haemonchus contortus eggs and potential limiting factors. Parasitol. Res. In press 101(1):71-6.
  4. Vilain S., Y. Luo, M.B. Hildreth, V.S. Brozel. 2006. Analysis of the life cycle of the soil saprophyte Bacillus cereus in liquid soil extract and in soil. Appl Environ Microbiol. 72(7):4970-7
  5. Harmon, A.F., D.S. Zarlenga and M.B. Hildreth. 2006. Improved Methods for Isolating DNA from Ostertagia ostertagi Eggs in Cattle Feces. Vet Parasitol. 135:297-302.
    6.
  6. Mertz, K.J., M.B. Hildreth, and W.B. Epperson. 2005. Assessment of the effect of gastrointestinal nematode infestation on weight gain in grazing beef cattle. JAVMA: 226(5)779-783.
  7. Wooters, M.A., M.B. Hildreth, E.A. Nelson, and A.K. Erickson. 2005. Immunohistochemical characterization of the distribution of galectin-4 in porcine small intestine. J. Histochem. Cytochem. 53: 197-205
  8. Hildreth, M.B., D.S. Blunt, and J.A. Oaks. 2004. Lethal effects of freezing Echinococcus multilocularis eggs at ultralow temperatures. J. Parasitol. 90(4):841-844.
  9. Hildreth, M.B. and N.H. Granholm. 2003. Effect of mouse strain variations and cortisone treatment on the establishment and growth of primary Echinococcus multilocularis hydatid cysts. J. Parasitol. Vol. 89:493-495.
  10. Lindsay, D.S., R. Neiger, M. Hildreth. 2002. Porcine enteritis associated with Eimeria spinosa Henry, 1931 infection. J. Parasitol. Vol. 88:1262-1263.
  11. Hildreth,M.B.. J.A. Bjordahl and S.R. Duimstra.2002. Fecal egg and oocyst counts in dogs and cats from animal shelters from South Dakota. Proc. S.D. Acad. Sci. 81:227-234.
  12. Jacques, C.N., J.A. Jenks, M.B. Hildreth, R.J. Schauer, and D.D. Johnson. 2001. Demodicosis in a white-tailed deer (Odocoileus virginianus) in South Dakota. The Prairie Naturalist 33(4):221-226.
  13. Epperson, W.B., B.D. Kenzy, K. Mertz and M.B. Hildreth. 2001. A single pasture limited treatment approach to estimate productive loss from internal nematodes in grazing stocker cattle. Vet. Parasitol. 97:269-276.
  14. Brinkman, M.A., B.W. Fuller, and M.B. Hildreth. Effects of the fungus Beauveria bassiana on nontarget arthropods. In: Cunningham, G.L., Sampson, M.W., tech. coords. Grasshopper integrated pest management user handbook. Tech. Bull. 1809. Washington, DC: U.S. Department of Agriculture, Animal and Plant Health Inspection Service: VII.7-1 to VII.7-3. (2000).
  15. Olson, E.J., J.A. Oaks, G.D. Osmundson, and M.B. Hildreth. 2000. Ultrastructural and lectin-histochemical differences between the scolex/strobila and bladder teguments of the Taenia taeniaeformis strobilocercus. J. Parasitol. 86: 18-24.
  16. Hildreth, M.B., S.Sriram, B. Gottstein, M. Wilson, and P.M. Schantz. 2000. Failure to identify alveolar hydatid disease in trappers from South Dakota in spite of high prevalence of Echinococcus multilocularis in wild canids. J. Parasitol. 86: 75-77
  17. Lindsay, D.S., S.J. Upton and M.B. Hildreth. 1999. Descriptions of two new species of coccidians (Protozoa: Eimeriidae) and redescriptions of Eimeria ivensae and Eimeria odocoilei from captive white-tailed deer, Odocoileus verginianus. J. Parasitol. 85: 1120-1125.
  18. Olson, E.J. W.B. Epperson, D.H. Zeman, R. Fayer and M.B. Hildreth. 1998. Effects of an allicin-based product on cryptosporidiosis in neonatal calves. JAVMA. 212 (7): 987-990.
  19. Hildreth, M.B., C.W. Brey, B.W. Fuller and R.N. Foster. 1998. Laboratory bioassays of Nosema locustae. In GHIPM User Handbook; Section I: Biological Control. Chapter 3: 1-7.
  20. Brinkman, M.A., B.W. Fuller, K.G. Leubke and M.B. Hildreth. 1997. Susceptibility of alfalfa leafcutting bees (Humenoptera: Megachilidae) to Beauveria bassiana infection. J. Agricultural Entomol. 14(4): 393-397.
  21. Hildreth, M.B., P.W. Pappas and J.A. Oaks. 1997. Effect of tunicamycin on the uptake and incorporation of galactose in Hymenolepis diminuta J. Parasitol. 83: 555-558.
  22. Brinkman, M.A., Fuller, B.W. and M.B. Hildreth. 1997. Effect of Beauveria bassiana (Balsamo) Vuillemin on migratory grasshoppers (Orthoptera: Acrididae) and non-target yellow mealworms (Coleoptera: Tenebrionidae) in spray tower bioassays. J. Agricultural Entomol. 14(2): 121-127.
  23. Hildreth, M.B. and K.R. Kazacos. 1993. Echinococcus multilocularis: A zoonotic tapeworm of potential concern in dogs and cats. Vet. Tech. 14: 640-647.
  24. Pritchard, R.H., J.U. Thomson, T.E. Lucus, S. Sai leela and M.B. Hildreth. 1993. Performance of chlortetracycline-sulfamethazine combinations in feeder calves with coccidiosis. Agripractice 14: 24-29.
  25. McDaniel, B. and M. Hildreth. 1992. First distributional records of Ixodes dammini Spielman, Clifford, Piesman, and Corwin and Ixodes scapularis Say in South Dakota. (Acarina: Ixodidae). Proc. Entomol. Soc. Wash. 94: 595.

 8)        Fayer, R., M. Tilley, S.J. Upton, A.J. Guidry, D.W. Thayer, D.W., M.B. Hildreth, J. Thomson. 1991. Production and preparation of hyperimmune bovine colostrum for passive immunotherapy of cryptosporidiosis. Second International Workshop on pneumocystis, cryptosporidium and microsporidia, Bozeman, Montana, June 28-July 2, 1991. J. Protozool. 38(6): 38S-39S.

 7)        Hildreth, M.B., M.D. Johnson and K.R. Kazacos. 1991. Echinococcus multilocularis: A Zoonosis of Increasing Concern in the United States. Compendium on Continuing Education for the Practicing Veterinarian. Vol. 13(5): 727-741.

 6)        Hildreth, M.B. 1989. Compartmentalization of radioactive glucose within a trypanorhynch plerocercus (Otobothrium insigne). International J. Parasitol. 19:417-423.

 5)        Hildreth, M.B. and R.D. Lumsden. 1988. Carbohydrate composition, utilization and absorption in the plerocercus metacestode of Otobothrium insigne (Cestoda: Trypanorhyncha). International J. Parasitol. 18:251-257.

 4)        Hildreth, M.B. and R.R. Lazzara. 1987. Factors affecting excystment in the plerocercus metacestode of Otobothrium insigne (Trypanorhyncha: Cestoda). Proc. Helminthol. Soc. Wash. 54:262-263.

 3)        Hildreth, M.B. and R.D. Lumsden. 1986. Microanatomy of the Otobothrium insigne plerocercus (Trypanorhyncha: Cestoda) J. Parasitol. 73:400-410.

 2)        Hildreth, M.B. and R.D. Lumsden. 1985. A description of the Otobothrium insigne (Cestoda: Trypanorhyncha) plerocercus and its incidence in marine catfish from the Gulf coast of Louisiana. Proc. Helminthol. Soc. Wash. 52:44-50.

 1)        Lumsden, R.D. and M.B. Hildreth. 1983. Fine structure of adult tapeworms. In "Biology of the Eucestodes" Vol. I (C. Arm and P. Pappas, eds.) pp. 177-233, Academic Press.


PUBLICATIONS IN A NONREFEREED FORUM (REPORTS, ETC.):

 1)        Fuller, B.W., M.A. Catangui, M.A. Brinkman, M.B. Hildreth, M.A. Boetel, E.M. Kahler, R.N. Foster and A.W. Walz. 1994. Diflubenzuron and Beauveria bassiana treatment effects on non-target arthropods in South Dakota in 1994. In: USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1994).

 2)        Hildreth, M.B., M.A. Brinkman, B.W. Fuller, M.A. Boetel, and R.N. Foster. 1993. Use of laboratory to compare the virulence of Beauveria bassiana in a target grasshopper to it virulence in a non-target insect. In: USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1993).

 3)        Hildreth, M.B. and B.W. Fuller. 1992. Use of laboratory bioassays to measure the virulence of grasshopper pathogen: Final stage of Nosema locustae studies and initial stage of Beauveria bassiana studies. In: USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1992) pp. 171-174.

 4)        Reuter, K.C., R.N. Foster, M.B. Hildreth, D. Colletto, and D.C. Hirsch. 1992. The effect on forage availability of an increased rate of Nosema locustae Canning on rangeland grasshoppers. In: USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1992) pp. 175-177.

 5)        Foster, R.N., K.C. Reuter, C. Bradley, J. Britton, L. Black, S. Drake, L. Leisner, M. Thompkins, B. Fuller, M. Hildreth, E. Kahler, and B. Radsick. 1992. Development of the fungus Beauveria bassiana as a bio-insecticide for grasshoppers on rangeland. In: USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1992) pp. 207-215.

 6)        Hildreth, M.B. and B.W. Fuller. 1991. Monitoring the virulence of Nosema locustae spores from different sources and following different storage periods. In USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1991)

 7)        Hildreth, M.B., D.C. Heckel and C.W. Brey. 1991. Laboratory bioassay to measure the shelf-life of Nosema locustae-formulated bran and the effect of sunlight on the viability of spores on bran. In USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1991)

 8)        Hildreth, M.B. and B.W. Fuller. 1990. Laboratory bioassay to compare virulence of grasshopper pathogens such as Nosema locustae from different sources. In USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1990) pp. 204-209.

 9)        Hildreth, M.B. and D.D. Walgenbach. 1990. Pathological effects of increased concentrations of Nosema locustae on two different grasshopper species with different susceptibilities. In USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1990) pp. 196-203.

 10)      Reuter, K.C., R.N. Foster, M.B. Hildreth, D. Colletto, W.J. Cushing, M.J. Pucelik, D. Kahler, R. Houston, and A. Scott. 1990. Preliminary investigation of the effect of a greatly increased rate of Nosema locustae on rangeland grasshopper populations. In USDA-APHIS-PPQ - Grasshopper Integrated Pest Management Project. Annual Report (Fiscal year 1990) pp. 169-174.


INVITED PRESENTATIONS:

 1)        Where and what are these mosquitoes? Surveillance and identification resources (Sponsored by S.D. Dept. of Health, S.D. Coop. Ext. Serv., S.D. Dept. of Ag.). Brookings, SD and SDSU/Extension Vtel LearnCenter Sites, May 11, 2004.

 2)        Economics and Control of Cattle-Worms in Beef Cattle. A Northern Perspective. (Sponsored Pfizer Animal Health, Inc.).

            a)        Hot Springs, SD, Feb. 11, 2004.

            b)        Larchwood, IA, Feb. 27, 2004.

            c)        Havre, MT, March 8, 2004.

            d)        Great Falls, MT, March 9, 2004.

            e)        Lead, SD, Feb. 6, 2003.

            f)         Lake Preston, SD Feb. 19, 2003.

            g)        Throughout Eastern Wyoming March 3-7, 2003.

            h)        Artesian, SD March 10, 2003.

            i)         San Francisco Beef/Feedlot Customer Meeting Dec 10-12 2003.

 3)        Cryptosporidiosis in South Dakota Cattle. (Sponsored by South Dakota Veterinary Medical Association) James Bailey Herd Health Conference. Brookings, SD February November 8, 2002.

 4)        Cattle-nematode Issues in the Northern Plains: Economics & Control. (Sponsored by SDSU Animal Science Department) Beep Group Seminar Series. Brookings, SD November 8, 2002.

 5)        Economic and Control of Cattle-Worms in Beef Cattle. A Northern Perspective. (Sponsored by Merial, Inc.) Beef Cattle Update. Colorado Springs, CO, July 12, 2002.

 6)        Impact of Parasites in Feedlot Cattle. (Sponsored by Pfizer Animal Health, Inc./South Dakota State University) Feedlot Health & Performance Seminar. Brookings, SD July 23, 2002.

 7)        Echinococcus in fur bearers and possible human contact. (Sponsored by South Dakota State University) Wildlife Diseases: A symposium and workshop for Tribal Biologists and Managers in the Great Plains Region. Brookings, SD. June 3-6, 2002

 8)        The Economics of Cattle Strongyle Nematodes in Beef Cattle in South Dakota. (Sponsored by Merial, Inc.) 21st Annual Summer Meeting of the South Dakota Veterinary Medical Association. Pierre, SD. June 2-4, 2002.

 6)        Economics and Control of Cattleworms: A Northern Perspective (Sponsored by Pfizer Animal Health, Inc.)

            a)        Denver, CO; March 13, 2002

            b)        Columbus, NE; February 15, 2002.

            c)        Deadwood, SD; February 8, 2002.



PAPERS PRESENTED:

78)      Mosquitos in South Dakota poster at S.D. (with M. Catangui) WNV Preparedness and Mosquito Control Conference, Pierre, SD March 15, 2004.

77)      Seasonal fluctuations in adult mosquito populations in eastern South Dakota during the summer of 2003. (with J.R. Bradley, K. Dahmash, and R. Beyer) 88th Annual Meeting of the South Dakota Academy of Sciences, Chamberlain, South Dakota. 2004.

76)      Effect of a spring-time deworming program on strongyle nematode loads in weaned calves from eastern South Dakota. (With A.F. Harmon, and W.B. Epperson) 88th Annual Meeting of the South Dakota Academy of Sciences, Chamberlain, South Dakota. 2004.

75)      Attempts to located Culex tarsalis larvae in traditional mosquito-breeding habitats from Brookings County, South Dakota.(with M.L. Hart and D.J. Thorpe) 88th Annual Meeting of the South Dakota Academy of Sciences, Chamberlain, South Dakota. 2004.

74)      Mosquito Populations from Eastern South Dakota during 2001 and 2002 (with B.D. Leininger, J. Nolz, K. Zirpel and S.L. Koth) 88th Annual Meeting of the South Dakota Academy of Science, Rapid City, SD 2003.

73)      Post-Winter Survival of Cattle Strongyle Juveniles on a South Dakota Pasture. (With K. J. Mertz, and W.B. Epperson) 47th Annual Meeting of the American Society of Veterinary Parsitologist, Nashville, TN, July 13-16 2002.

72)      Fecal Egg and Oocyst Counts in Dogs from Animal Shelters from South Dakota. (With J.A. Bjordahl and S.R. Duimstra) 87th Annual Meeting of the South Dakota Academy of Sciences, Sioux Falls, S.D.. April 5, 2002.

71)      Determination of Infective Gastrointestinal Nematode Juveniles on Spring Pastures (With K. J. Mertz and W.B. Epperson) 87th Annual Meeting of the South Dakota Academy of Sciences, Sioux Falls, S.D.. April 5, 2002.

70)      Underestimation of Gastrointestinal Nematode Burdens in Cattle Herds when Analyzing Sample Populations. (With K.J. Mertz and W.B. Epperson) 86th Annual Meeting of the South Dakota Academy of Sciences, Vermillion, South Dakota. 2001.

69)      Estimating the Effects of Gastrointestinal Nematodes In Calves on Summer Pastures. (With K.J. Mertz and W.B. Epperson) 45th Annual Meeting of the American Society of Veterinary Parsitologist, Salt Lake City, Utah, July 22-25 2000.

68)      Losses Associated with Gastrointestinal Nematodes in Yearling, Stocker, Grass Calves. (with Keith Mertz and Bill Epperson). 85th Annual Meeting of the South Dakota Academy of Sciences, Fargo, North Dakota. 2000.

67)      Losses Associated with Gastrointestinal Nematodes in Cow-Calf Herds in South Dakota. (with Keith Mertz, Craig Helvik and Bill Epperson). South Dakota Undergraduate Research Poster Session, Pierre, SD. 2000

66)      Assessing the Economic Importance of Nematodes in Cow-Calf Pairs in Eastern Brookings County – A Pilot Study (with Keith Mertz and Bill Epperson) 84th Annual Meeting of the South Dakota Academy of Sciences, Madison, South Dakota. 1999.

65)      Shared Antigens between Adult and Protoscolex Stages of Echinococcus multilocularis. (with T.L. Lackey and M.A. Perry) 74th Annual Meeting of the American Society of Parasitologists, Monterey, CA. 1999.

64)      Echinococcus multilocularis and alveolar echinococcosis: Factors associated with increasing range in North America, (with P.M. Schantz and K.R. Kazacos) International Conference on Emerging Infectious Diseases (Organized by: Centers for Disease Control and Prevention, the Council of State and Territorial Epidemiologists, the American Society for Microbiology, and the National Foundation for CDC), Atlanta, GA, March 8-11, 1998

63)      Glycoprotein composition of the Taenia taeniaeformis strobilocercus surface tegument: Scolex versus bladder. (with E.J. Olson, M.A. Perry, J.A. Oaks) 73rd Annual Meeting of the American Society of Parasitologists, Kono, HA. 1998.

62)      Mechanisms for resistance to digestion in tapeworm surface membranes: Development of an experimental model. (with E.J. Olson, M.A. Perry, and J. A. Oaks. Second International Rushmore Conference on Mechanisms in the Pathogenesis of Enteric Diseases. Rapid City, SD, p. 49, 1998

61)      Assessing the economic importance of nematodes in yearling calves from South Dakota - A pilot study. (with W.B. Epperson and B. Kenzy) Fourth Annual Raymond A. Moore Biostress Research Poster Day, Brookings, South Dakota. 1998.

60)      Determining the resemblance of proteins from a crude antigen source between adult Echinococcus multilocularis excretory/secretory (E/S) antigens to protoscoleces (with T.L. Lackey and M.A. Perry) Fourth Annual Raymond A. Moore Biostress Research Poster Day, Brookings, South Dakota. 1998.

59)      Comparison of adult Echinococcus multilocularis excretory/secretory (E/S) antigens to those of protoscoleces (with T.L. Lackey and M.A. Perry) 83th Annual Meeting of the South Dakota Academy of Sciences, Spearfish, South Dakota. 1998.

58)      Protein composition of the Taenia taeniaeformis strobilocercus surface tegument: scolex versus bladder (with E.J. Olson1, M.A. Perry, J.A. Oaks and M.B. Hildreth) South Dakota EPSCoR Eighth Annual Conference, Brookings, SD, 1997.

57)      Effect of acidic pepsin on the viability of Echinococcus multilocularis protoscoleces. (with E.J. Olson, D.J. Robinson, and W.C. Luhman) Third Annual Raymond A. Moore Biostress Research Poster Day, Brookings, South Dakota. 1997.

56)      Prevalence of intestinal parasites in cattle from four different geographical regions in the U.S.A. (with B.D. Steinlicht, J.Y. Smith, W.C. Luhman E.J. Olson, and W.B. Epperson) Third Annual Raymond A. Moore Biostress Research Poster Day, Brookings, South Dakota. 1997.

55)      Glycoconjugates Associated with the Digestible and Non-Digestible Regions of the Taenia taeniaeformis Strobilocercus Based on Lectin Histochemistry of Whole Worms. (with E.J. Olson, S.R. Duimstra, and T.R. Wickre) 72th Annual Meeting of the American Society of Parasitologists, Nashville, TN. 1997.

54)      Use of digitonin to differentially strip the tegumental membrane surrounding the strobila and bladder regions of Taenia taeniaeformis strobilocerci. (with E.J. Olson, D.J. Robinson and S.R. Duimstra) 82nd Annual Meeting of the South Dakota Academy of Sciences, Aberdeen, South Dakota. 1997.

53)      In vitro digestion of the Taenia taeniaeformis strobilocercus bladder. (with E.J. Olson, and J.A. Oaks) South Dakota EPSCoR Seventh Annual Conference, Rapid City, SD, 1996.

52)      Use of lectin histochemistry to evaluate the effects of tunicamycin on Hymenolepis diminuta adult tapeworms (with E.J. Olson) Second Annual Raymond A. Moore Biostress Research Poster Day, Brookings, South Dakota. 1996.

51)      Effects of an allicin-based milk replacer additive on cryptosporidiosis: a neonatal calf bioassay. (with E.J. Olson, W.B. Epperson, and D.H. Zeman) Second Annual Raymond A. Moore Biostress Research Poster Day, Brookings, South Dakota. 1996.

50)      Effects of Enterocin-C on cryptosporidiosis in neonatal calves. (with E.J. Olson, W.B. Epperson, and D.H. Zeman) 41th Annual Meeting of the American Society of Veterinary Parsitologist, Louisville Kentucky, 1996.

49)      Difficulties with diagnosing Cryptosporidium parvum infections in adult cows. (with M. Pence, J.A. Bjordahl, K.J. Myers and J.U. Thomson) 38th Annual Meeting of the North Central Conference of Veterinary Laboratory Diagnosticians, 1996.

48)      Use of lectin histochemistry to evaluate the effects of tunicamycin on Hymenolepis diminuta adult tapeworms (with E.J. Olson, and J.A. Oaks) 81th Annual Meeting of the South Dakota Academy of Sciences, Brookings, South Dakota. 1996.

47)      Echinococcus multilocularis and other zoonotic helminths in carnivores from South Dakota. 1996 Annual Meeting of the South Dakota Chapter of the Wildlife Society, Mitchell, SD

46)      A modified immunocytochemical method for identifying anti-Echinococcus multilocularis-protoscolex antibodies bound to protoscoleces and adults. (with J.C. Hibma) 80th Annual Meeting of the South Dakota Academy of Sciences, Mitchell, South Dakota. 1995.

45)      Binding of antibodies against Echinococcus multilocularis protoscolex excretory/secretory antigens to adult excretory/secretory and surface antigens. (with S. SaiLeela and J.C. Hibma) 69th Annual Meeting of the American Society of Parasitologists, Fort Collins, Colorado. 1994.

44)      Evaluation of five diagnostic methods for detection of Cryptosporidium oocysts in bovine feces. (with J.A. Bjordahl, J.U. Thomson, D.H. Zeman, and H.R. Hess) 39th Annual Meeting of the American Society of Veterinary Parsitologist, San Francisco, California,1994.

43)      Prevalence of parasites in cattle from the northern plains. (with L.A. Odenbrett, R.L. Odenbrett and J.U. Thomson) 46th Annual Meeting of the Annual Midwestern Conference of Parasitologists, Murry, Kentucky. 1994.

42)      Beauveria bassiana bioassays for rangeland grasshoppers and non-target arthropods. (with M.A. Brinkman, B.W. Fuller, K.G. Leubke) 49th Annual Meeting of the North Central Branch of the Entomological Society of America, Springfield, Illinois. 1994.

41)      Susceptibility of alfalfa leafcutting bees and migratory grasshoppers to Beauveria bassiana infections in spraytower bioassays (with M.A. Brinkman and B.W. Fuller) 1994 Annual Meeting of the Entomological Society of America, Dallas, Texas.

40)      Use of a laboratory spray tower to compare the virulence of Beauveria bassiana in Melanoplus sanguinipes grasshoppers and Megachile leafcutter bees (with K.G. Luebke) 79th Annual Meeting of the South Dakota Academy of Sciences, Sioux Falls, South Dakota. 1994.

39)      Immunocytochemical binding of antibodies against Echinococus multilocularis protoscolex excretory\secretory antigens to whole and sectioned protoscoleces (with J.C. Hibma and S. Saileela) 79th Annual Meeting of the South Dakota Academy of Sciences, Sioux Falls, South Dakota. 1994.

38)      Coccidiosis and cryptosporidiosis: stress-facilitated diseases of production animals. (with J.U. Thomson, R.H. Pritchard, D.H. Hurley and D.H. Francis) Northern Plains Biostress Laboratory Biostress Symposium: Stress Mechanisms, Brookings, South Dakota. 1993.

37)      Virulence of a grasshopper strain of Beauveria bassiana in Melanoplus sanguinipes grasshoppers and Tenebrio beetles. (with G.V. Hilderbrand, M. Brinkman and B.W. Fuller. 78th Annual Meeting of the South Dakota Academy of Sciences, Rapid City, South Dakota. 1993.

36)      Parasite prevalence and distribution in 1993, and pathophysiology of parasites. Invited Speaker at SmithKline Beecham Mid-Season Health Update. Brookings, SD. 1993.

35)      Cryptosporidiosis. Invited Speaker at the Annual Meeting of the South Dakota Veterinary Medical Association. Sioux Falls, SD. 1993.

34)      Parasite distribution in the great plains, and their affects. Invited Speaker at the Annual Meeting of the South Dakota Cattleman's Association. Sioux Falls, SD. 1993.

33)      Difficulties with the identification of Echinococcus multilocularis infections in dogs and cats (with D.S. Blunt and S. SaiLeela) Invited speaker at the "Echinococcosis, A Review and Uptake" seminar; held in conjunction with the 37th Annual Meeting of the American Society of Veterinary Parsitologist, Boston, Massachusetts 1992.

32)      Use of the polymerase chain reaction for the identification of Echinococcus multilocularis fecal eggs. (with D.S. Blunt) 67th Annual Meeting of the American Society of Parasitologists, Philadelphia, Pennsylvania. 1992.

31)      Serological survey for Echinococcus multilocularis antibodies in South Dakota fox trappers. (with S. SaiLeela, B. Gottstein, M. Wilson, and P.M. Schantz) 67th Annual Meeting of the American Society of Parasitologists, Philadelphia, Pennsylvania. 1992.

30)      Isolation and quantification of DNA in the egg stage of Echinococcus multilocularis (with D.S. Blunt) 44th Annual Meeting of the Annual Midwestern Conference of Parasitologists, Eau Claire, Wisconsin. 1992.

29)      Potential sources of Echinococcus multilocularis antigens for use in a fecal antigen ELISA test. (with S. SaiLeela) 44th Annual Meeting of the Annual Midwestern Conference of Parasitologists, Eau Claire, Wisconsin. 1992.

28)      Analysis of polymerase chain reaction primers against the American strain of Echinococcus multilocularis (with D.S. Blunt) 77th Annual Meeting of the South Dakota Academy of Sciences, Sioux Falls, South Dakota. 1992.

27)      Lethal effects of freezing Echinococcus multilocularis eggs at low temperatures. (with D.S. Blunt and J.A. Gubrud) 66th Annual Meeting of the American Society of Parasitologists, Madison, Wisconsin. 1991.

26)      Cytopathological effects of Nosema locustae on the fat body trophocytes of grasshoppers (with D.C. Heckel and C.W. Brey) 66th Annual Meeting of the American Society of Parasitologists, Madison, Wisconsin. 1991.

25)      Potential DNA probe for differentiating taeniid species (with D.S. Blunt) 76th Annual Meeting of the South Dakota Academy of Sciences, Vermillion, South Dakota. 1991.

24)      Factors affecting the success of Nosema locustae in controlling grasshoppers (with D.C. Heckel) 76th Annual Meeting of the South Dakota Academy of Sciences, Vermillion, South Dakota. 1991.

23)      Preliminary effects of combined Escherichia coli and Isospora suis infection in gnotobiotic pigs (with C.S. Faulstich, J. Christopher-Hennings, D.H. Zeman, and D.H. Francis) 76th Annual Meeting of the South Dakota Academy of Sciences, Vermillion, South Dakota. 1991.

22)      Bioassay for infectivity of Nosema locustae spores adhered to wheat bran (with D.C. Heckel and R.N. Foster) 43nd Annual Meeting of the Annual Midwestern Conference of Parasitologists, Vermillion, South Dakota. 1991.

21)      Survey for alveolar hydatid disease in South Dakota. (with M.D. Johnson, D. Reese, M. Wilson and P.M. Schantz) 43nd Annual Meeting of the Annual Midwestern Conference of Parasitologists, Vermillion, South Dakota. 1991.

20)      Use of a genomic probe for differentiating Echinococcus multilocularis from Taenia taeniaeformis (with D.S. Blunt) Annual Meeting of the North Central Branch of the American Society for Microbiology, Brookings, South Dakota. 1991.

19)      The process of diagnosis and control (of Echinococcus multilocularis in dogs). Invited speaker at the "Echinococcosis, A Review and Uptake" seminar; held in conjunction with the 35th Annual Meeting of the American Society of Veterinary Parsitologist, San Antonio, Texas. 1990.

18)      Use of lectins for the diagnosis of adult Echinococcus multilocularis infections. (with M.D. Johnson) 65nd Annual Meeting of the American Society of Parasitologists, East Lansing, Michigan. 1990.

17)      Comparison of the pathology of Nosema locustae in Melanoplus sanguinipes and Melanoplus bivitatus (with C.W. Brey and D.D. Walgenbach) 45th Annual Meeting of the North Central Branch of the Entomological Society of America, Grand Rapids, Michigan. 1990.

16)      Effect of cyclosporin A on Trypanosoma lewisi parasitemia in the white rat (with B.J. Rosonke) 75th Annual Meeting of the South Dakota Academy of Sciences, Madison, South Dakota. 1990.

15)      Lectin binding characteristics of Taenia taeniaeformis strobilocerci at different ages (with G.D. Osmundson) 75th Annual Meeting of the South Dakota Academy of Sciences, Madison, South Dakota. 1990.

14)      Factors affecting mortality in Nosema locustae infected Melanoplus sangunipes grasshoppers (with C.W. Brey) 75th Annual Meeting of the South Dakota Academy of Sciences, Madison, South Dakota. 1990.

13)      Bleach hatching of taeniid eggs (with M.D. Johnson) 75th Annual Meeting of the South Dakota Academy of Sciences, Madison, South Dakota. 1990.

12)      Lectin histochemical characterization of Echinococcus multilocularis eggs. (with M.D. Johnson) 64nd Annual Meeting of the American Society of Parasitologists, Vancouver, British Columbia. 1989.

11)      Zoonotic helminths in red foxes from southeastern South Dakota. (with D. Schneider) 74th Annual Meeting of the South Dakota Academy of Sciences, Spearfish, South Dakota. 1989.

10)      Effect of immunosuppressive/anti-inflammatory agents on the establishment of Taenia taeniaeformis in mice. (with L.K. Hinkley) 74th Annual Meeting of the South Dakota Academy of Sciences, Spearfish, South Dakota. 1989.

 9)        Effect of tunicamycin on carbohydrate transport and incorporation in the adult stage of Hymenolepis diminuta. (with J.A. Oaks) 62nd Annual Meeting of the American Society of Parasitologists, Lincoln, Nebraska. 1987.

 8)        Metacestode Surfaces. Invited Speaker at the 1st Annual "Midwest Tropical Disease Research Meeting". March 28, 1987. University of Illinois College of Medicine at Rockford; Rockford, IL.

 7)        A lectin histochemical comparison of glycoconjugates associated with the digestible and non-digestible surface membranes of the Taenia taeniaeformis strobilocercus. (with J.A. Oaks) Annual Meeting of FASEB, St. Louis, Missouri. 1986.

 6)        Characterization of the Taenia taeniaeformis strobilocercus tegumental surface membrane with Lectins. (with J.A. Oaks) 60th Annual Meeting of the American Society of Parasitologists, Athens, Georgia. 1985.

 5)        Tegumental free-surface glycocalyx characterized by lectin binding to Hymenolepis diminuta (with J.A. Oaks) 60th Annual Meeting of the American Society of Parasitologists, Athens, Georgia. 1985.

 4)        Compartmentalization of glucose within a trypanorhynch bladderworm. 58th Annual Meeting of the American Society of Parasitologists, San Antonio, Texas. 1983.

 3)        Tegumental ultrastructure of the Otobothrium sp. plerocercus metacestode (Cestoda, Trypanorhyncha): Blastocyst and juvenile Scolex. Spring Symposia of the Louisiana Society for Electron Microscopy, New Orleans, Louisiana. 1982.

 2)        Blastocyst of the Otobothrium sp. plerocercus: fine stucture and glucose movement. 55th Annual Meeting of the American Society of Parasitologists, Berkely, California. 1980.

 1)        Ultrastuctural studies on the plerocercus blastocyst of the trypanorhynch cestode, Otobothrium sp. 13th Annual Meeting of the Southwest Association of Parasitologists, University of Oklahoma Biological Station, Texoma, Oklahoma. 1980.