LITERATURE CITED

Agnew, M.L. 1992. Slow-release fertilizers: natural organic nitrogensources. Golf Course Management. March, p. 70-75.

Agrios, G.N. 1978. Plant Pathology. 2nd ed. Academic Press, Orlando, FL.

Alberda, T. 1957. The effects of cutting, light intensity and night temperatureon growth and soluble carbohydrate content of Lolium perenne L.Plant and Soil 8: 199-230.

Allen, M.C. and C.M. Haenseler. 1935. Antagonistic action of Trichodermaon Rhizoctonia and other soil fungi. Phytopathology 25:244-252.

Allington, W.B. 1936. Sclerotial formation in Rhizoctonia ~ as affectedby nutrition and other factors. Phytopathology 26:831-844.

Baker, K.F. 1970. Types of Rhizoctonia diseases and their occurrence. p.125-148. InJ.R. Parmeter, Jr. (ed.) Rhizoctonia~. Biology andPathology. Univ. Calif. Press, Berkeley, CA.

Baker, R. and C.A. Martinson. 1970. Epidemiology of diseases caused byRhizoctonia~. p. 172-188. InJ.R. Parmeter, Jr. (ed.) Rhizoctoniasolani. Biology and Pathology. Univ. Calif. Press, Berkeley, CA.

Baldwin, N.A. 1993. Evaluation of turfgrass disease diagnostic test kits inEurope. International Turfgrass Society Research Journal 7:342-347.

Beard, J.B. 1973. Turfgrass: Science and Culture. Prentice-Hall,Englewood Cliffs, NJ.

Berger, R.D. 1977. Application of epidemiological principles to achieve plantdisease control. Annual Review of Plant Pathology 15:165-183.

Berger, A.D. 1988. The analysis of effeds of control measures on thedevelopment of epidemics. p. 137-150. In J. Kranz and J. Rot~m (ed.)Experimental Techniques in Plant Disease Epidemiology. Spnnger-Verlag, Berlin.

Blair, 1.0. 1943. Behavior of the fungus Rhizoctonia ~ Kuhn in the soil.Annals of Applied Biology 30:118-127.

Bloom, J.R. and H.B. Couch. 1960. Influence of e~viror:ment on di~eases ~turfgrasses. I. Effect of nutrition, pH, and soli moisture on Rhizoctonlabrown patch. Phytopathology 50:532-534.

221

Bourke, .P.M.A. 1~70. ~se of weather information in the prediction of plantdisease eplphytotics. Annual Review of Phytopathology 12:345-370.

Brede, A.D. 1991. Interaction of management factors on dollar spot diseaseseverity in tall fescue turf. HortScience 26: 1391-1392.

Bruneau, A.H., J.E. Watkins, and R.L. Brandenberg. 1992. Integrated pestmanagement. p.501-534. InD.V. Waddington, R.N. Carrow, and R.C.Shearman (ed.) Turfgrass. Agron. Monogr. 32. ASA, Madison, WI.

Burdon, J.J. and G.A. Chilvers. 1982. Host density as a factor in plantdisease ecology. Annual Review of Phytopathology 20:143-166.

Burpee, L. and B. Martin. 1992. Biology of Rhizoctonia species associatedwith turfgrasses. Plant Disease 76:112-117.

Burpee, L.L. 1993. Integrated control of turfgrass diseases: research andreality. International Turfgrass Society Research Journal 7:80-86.

Butt, D.J. and D.J. Royle. 1990. Multiple regression analysis in theepidemiology of plant diseases. p. 143-180. In J. Kranz (ed.)Epidemics of Plant Diseases: Mathematical Analysis and Modeling.Springer-Verlag, Berlin.

Cahill, J.V., J.J. Murray, N.R. O'Neill, and P.H. Demoeden. 1983. Inter-relationships between fertility and red thread fungal disease ofturfgrass. Plant Disease 67:1080-1083.

Campbell, C.L. and L.V. Madden. 1991. Introduction to Plant DiseaseEpidemiology. John Wiley & Sons, New York, NY.

Carrier, L. 1923. The Bordeaux treatment for brown patch. Bulletin of GreenSection of the United States Golf Association 3:163-164.

Chet, I. and R. Baker. 1980. Induction of suppressiveness to Rhizoctoniasolani in soil. Phytopathology 70:944-998.

Chew, V. 1976. Comparing treatment means: a compendiLm. HortScience11:348-356.

Christie, J.R. and V.G. Perry. 1951. Removing nematodes from soil. Proc. ofthe Helminthological Society, Washington, D.C. 18:106-108.

Clark, M.F. 1981. Immunosorbent assays in plant pathology. Annual Reviewof Phytopathology 19:83-106.

222

Coakley, S.M. 1985. Describing and quantifying the environment. Plant Disease 69:461-466.

Cody, R.P. and J.K. Smith. 1991. Applied Statistics and the SAS Programming Language. Elsevier Science, New York, NY.

Cole, H„ L.B. Forer, P.E. Nelson, J.R. Bloom, and M.H. Jodon. 1973. Stylet nematode genera and Fusarium species isolated from Pennsylvania turfgrass sod production fields. Plant Disease Reporter 57:891-895.

Colhoun, J. 1973. Effects of environmental factors on plant disease. Annual Review of Phytopathology 11:343-364.

Cook, R.N., R.E. Engel, and S. Bachelder. 1964. A study on the effect of nitrogen carriers on turfgrass disease. Plant Disease Reporter 48:254-255.

Couch, H.B. 1973. Diseases of Turfgrasses. Kreiger, New York, NY.

Couch, H.B. and J.R. Bloom. 1958. Influence of soil moisture, pH and nutrition on the alteration of disease proneness in plants. Transactions of the New York Academy of Science 20:432-437.

Couch, H.B. and J.R. Bloom. 1960. Influence of environment on diseases of turfgrasses. II. Effect of nutrition, pH, and soil moisture on Sclerotinia dollar spot. Phytopathology 50:761-763.

Curtis, L.C. 1943. Deleterious effects of guttated fluids on foliage. American Journal of Botany 30:778-781.

Curtis, L.C. 1944. The exudation of glutamine from lawn grasses. Plant Physiology 19:1-4.

Cutright, N.J. and M.B. Harrison. 1970. Some environmental factors affecting Fusarium blight of Merion Kentucky bluegrass. Plant Disease Reporter 54:1018-1020.

Dahl,A.S. 1933. Effect of temperature on brown patch of turf. Phytopathology 23:8.

Dale, J.L. 1978. Atypical symptoms of Rhizoctonia infection on zoysia. Plant Disease Reporter 62:645-647.

Danneberger, T.K. 1993. Turgrass Ecology and Management. Franzak& Foster, Cleveland, OH.

223

Danneberger, T.K., J.M Vargas, and A.L. Jones. 1984. A model for weather-based forecasting of anthracnose on annual bluegrass.Phytopathology 74:448-451.

Danneberger, T.K., J.M. Vargas, P.E. Rieke, and J.R. Street. 1983.~hracnose .development on annual bluegrass in response to~~ogen carners and fungicide applications. Agronomy Journal 75:35-

Das, A.S. a.nd J.H. Western. 1959. The effect of inorganic manures, moisture. and Inoculum on the incidence of root diseases caused by Rhizoctonia

solani Kuhn in cultivated soil. Annals of Applied Biology 47:37-48.

Davey, C.B. and G.C. Papavizas. 1960. Effect of dry mature plant materialsand nitrogen on Rhizoctonia solani in soil. Phytopathology 50:522-525.

Davey, C.B. and G.C. Papavizas. 1963. Saprophytic activity of Rhizoctoniaas affected by the carbon-nitrogen balance of certain organic soilamendments. Soil Science Society of America Proceedings 27: 164-167.

Davis, D.B. and P.H. Dernoeden. 1991. Summer patch and Kentuckybluegrass quality as influenced by cultural practices. AgronomyJournal 83:670-677.

Davis, D.R. and J.E. Hughes. 1970. A new approach to recording the wettingparameter by use of electrical resistance sensors. Plant DiseaseReporter 54:474-479.

Demeoden, P.H. and M.S. Mcintosh. 1991. Seasonal quality responses ofperennial ryegrass as influenced by fungicides. HortScience 26: 1181-1183 .

. Demoeden, P.H. 1987. Management of take-all patch of creepi~ bentgrasswith nitrogen, suiter, and phenyl mercury acetate. Plant Disease71 :226-229.

Demoeden, P.H. 1993. Integrating strategies for the management of patchdiseases caused by root invading ectotrophic fungi. p. 123-161. InB.B. Clarke and A.B. Gould (ed.) Turfgrass Patch Diseases Caused ByEdotrophic Root-Infecting FlI1Qi. APS Press, St. Paul, MN.

Demoeden, P.H .• J.N. Crahay and D.B. Davis. 1991. Spring dead spot a~bermudagrass quality as Influenced by nitrogen source and potassn,m.Crop Science 31:1674-1680.

224

Dickinson, L.S. 1930. The effect of air temperatures on the pathogenicity of Rhizoctonia solan; parasitizing grasses on putting-green turf. Phytopathology 20:597-608.

Draper, N.R. and H. Smith. 1981. Applied Regression Analysis. 2nd ed. John Wiley & Sons, New York, NY.

Dube, A.J., R.L Dodmen, and N.T. Flentje. 1971. The influence of water activity on the growth of Rhizoctonia solani. Australian Journal of Biological Science 24:57-65.

Endo, R.M. 1961. Turfgrass diseases in southern California. Plant Disease Reporter 45:869-873.

Endo, R.M. 1963. Influence of temperature on rate of growth of five fungus pathogens of turfgrass and on rates of disease spread. Phytopathology 53:857-861.

Endo, R.M. 1966. Control of dollar spot of turfgrass by nitrogen and its probable bases. Phytopathology 56:877.

Endo, R.M. and R.H. Amacher. 1964. Influence of guttation fluid on infection structures of Helminthosproium sorokinianum. Phytopathology 54:1327-1334.

Fraser, J.W. 1968. A method of constructing and installing thermocouples for measuring soil temperatures. Canadian Journal of Soil Science 48:366-368.

Freund, R.J. and R.C. Littell. 1991. SAS System for Regression. 2nd ed. SAS Institute, Cary, NC.

Fry, W.E. 1982. Principles of Plant Disease Management. Academic Press, New York, NY.

Fry, W.E. and G.R. Fohner. 1985. Construction of predictive models: I. Forecasting disease development, p. 161-178. In C.A. Gilligan (ed) Advances in Plant Pathology: III. Mathematical Modelling of Crop Disease. Academic Press, New York, NY.

Gallegly, M.E. and J.C. Walker. 1949. Plant nutrition in relation to disease development. V. Bacterial wilt of tomato. American Journal of Botany 36:613-623.

Garrett SD 1962. Decomposition of cellulose in soil by Rhizoctonia solani Kiihn. Transactions of the British Mycological Society 45:115-120.

225

Giesler, L.J., G.Y. Yuen, and G.L Horst. 1994. Microenvironmental factors ^ " 9 brown patch disease severity in tall fescue. Phytopathology 84*. 1085.

Gillespie. T.J. and G.E. Kidd. 1978. Sensing duration of leaf moisture retention using electrical impedance grids. Canadian Journal of Plant Science 58:179-187.

Gilligan, C.A. 1986. Use and misuse of the analysis of variance in plant pathology, p. 225-261. In D.S. Ingram and P.H. Williams (ed.) Advances in Plant Pathology. Vol. 5. Academic Press. New York, NY.

Gleason, M.L., S.E. Taylor. T.M. Loughin, and K.J. Koehler. 1994. Development and validation of an empirical model to estimate duration of dew periods. Plant Disease 78:1011-1016.

Goss, R.L. and C.J. Gould. 1967. Some interrelationships between fertility levels and Ophiobolus patch disease in turfgrasses. Agronomy Journal 59:149-151.

Green. D.E., II, J.D. Fry, J.C. Pair, and N.C. Tisserat. 1994. Influence of management practices on Rhizoctonia large patch disease in zoysiagrass. HortScience 29:186-188.

Halisky, P.M., C.R. Funk, and R.E. Engel. 1966. Melting-out of Kentucky bluegrass varieties by Helminthosporium vaqans as influenced by turf management practices. Plant Disease Reporter 50:703-706.

Halisky, P.M., R.F. Myers, and R.E. Wagner. 1981. Relationship to thatch to nematodes, dollar spot and fungicides in Kentucky bluegrass turf. p. 415-420. In R.W. Sheard (ed) Proc. Fourth International Turfgrass Research Conference. Guelph, Ontario. 19-23 Jul 1981. Univ. of Guelph. Guelph, Ontario.

Hall, R. 1984. Relationship between weather factors and dollar spot of creeping bentgrass. Canadian Journal of Plant Science 64:167-174.

Harivandi, M.A. J.D Butler, and L. Wu. 1992. Salinity and turf culture, p. 207-229. /nD.V. Waddington, R.N. Carrow, and R.C. Shearman (ed.) Turfgrass. Agron. Monogr. 32. ASA. Madison, Wl.

Haygood R.A. and S.B. Martin. 1987. Characterization of brown patch on centipede and StAugustine grass in South Carolina. Phytopathology

77:1733.

226

Haygood, R.A., R.M. Lippert, A.R. Mazur, and L.C. Miller. 1989. Influence of pH and water stress on the susceptibility of centipede grass to Rhizoctoniasolani. Phytopathology 79:373.

Heald, C M . and Burton, G.W. 1968. Effect of organic and inorganic nitrogen on nematode populations on turf. Plant Disease Reporter 52:46-48.

Heald, C M . and V.G. Perry. 1969. Nematodes and other pests, p. 358-369. In A.A. Hanson and F.V. Juska (ed.) Turfgrass Science. Agron. Monogr. 14. ASA, CSSA, and SSSA, Madison, Wl.

Hearn, J.H. 1943. Rhizoctonia solani Kiihn and the brown patch disease nf grass. Review of Applied Mycology 23:111 -112.

Hebert, T.T. 1982. The rational for the Horsfall-Barratt plant disease assessment scale. Phytopathology 72:1269.

Henis, Y., A. Ghaffar, and R. Baker. 1979. Factors affecting suppressiveness to Rhizoctonia solani in soil. Phytopathology 1164-1169.

Henneberry, T.J., E.H. Glass, R.G. Gilber, E.G. King, and R.W. Miller. 1992. Integrated pest management, a sustainable technology, p. 150-159 In D.T. Smith (ed.) The 1991 Yearbook in Agriculture: Agriculture and The Environment. USDA, Washington, D C

Hoitjnk, H.A. 1980. Composted bark, a lightweight growth medium with fungicidal properties. Plant Disease 64:142-147.

Hoitjnk, H.A. and P.C. Fahy. 1986. Basis for the control of soilborne plant pathogens with composts. Annual Review of Phytopathology 24:93-114.

Horsfall, J.G. and E.G. Cowling. 1978. Pathometry: The measurement of plant disease, p. 119-136. In J.G. Horsfall and E.G. Cowling (ed.) Plant Disease: An Advanced treatise. Vol. II. Academic Press. New York, NY.

Huber, D.M. and R.D. Watson. 1970. Effect of organic amendments on soil borne pathogens. Phytopathology 60:22-25.

Huber, D.M. and R.D. Watson. 1974. Nitrogen form and plant disease. Annual Review of Phytopathology 12:139-165.

Huber, L. and T.J. Gillespie. 1992. Modeling leaf wetness in relation to plant disease epidemiology. Annual Review of Rant Pathology 30:553-577.

227

Hull, R.J. 1992. Energy relations and carbohydrate partitioning in turfgrass p. 175-206. /nD.V. Waddington, R.N. Carrow, and R.C. Shearman (ed.) Turfgrass. Agron. Monogr. 32. ASA, Madison, Wl.

Hull, R.J., N. Jackson, and C.R. Skogley. 1979. Influence of nutrition on stripe smut severity in Kentucky Wuegrass turf. Agronomy Journal 71:553-555.

Jacobsen, B.J. and P.A. Backman. 1993. Biological and cultural plant disease controls: alternatives and supplements to chemicals in IPM systems. Plant Disease 77:311-314.

Johnson, K.B. 1991. The role of predictive systems in disease management, p. 176-190. In P.S. Teng (ed.) Crop Loss Assessment and Pest Management. APS Press, St. Paul, MN.

Jones, A.L, P.D. Fisher, R.C. Seem, J.C. Kroon and P.J. Van DeMotter. 1984. Development and commercialization of an in-field microcomputer delivery system for weather-driven prediction models. Plant Disease 68:458-463.

Joyner, B.G., R.E. Partyka, and P.O. Larsen. 1977. Rhizoctonia brown patch of Kentucky Wuegrass. Plant Disease 61:749-752.

Kaufman, D.D. and L.E. Williams. 1965. Influence of soil reaction and mineral fertilization on numbers and types of fungi antagonistic to four soil borne plant pathogens. Phytopathology 55:571-574.

Kerr, A. 1956. Factors influencing the development of brown patch in lawns of Sagina procumbens L. Australian Journal of Biological Science 9:332-339.

Kneebone, W.R., D.M. Kopec, and C.F. Mancino. 1992. Water requirements and irrigation, p. 441-472. /nD.V. Waddington, R.N. Carrow. and R.C. Shearman (ed.) Turfgrass. Agron. Monogr. 32. ASA, Madison, Wl.

Krause, R.A. and L.B. Massie. 1975. Predictive systems: modem approaches to disease control. Annual Review of Phytopathology 13:31-47.

Kuter, G.A., H.A. Hoitink and W. Chen. 1988. Effects of municipal sludge compost curing time on suppression of Pvthium and RhiTOCtQQia diseases on ornamental plants. Plant Disease 72:751-756.

Latin, R X., G.E. Miles, and J.C. Rettinger. 1987. Expert systems in plant pathology. Plant Disease 71:866-872.

228

Lawton, .M.B. and L.L. Burp~e. 1990. Seed treatments for Typhula blight andpink snow mold of WInterwheat relationships among disease intensity~: recovery and yield. Canadian Journal of Plant Pathology 12:63- '

Leslie, A.A. 1989. Development of an IPM program for bJrfgrasses. p.315-318. In A.R. Leslie and R.L. Metcalf (ed.) Integrated Pest Manage-ment for Turfgrass and Ornamentals. USEPA, Washington, DC.

Lui, S. and A. Baker. 1980. Mechanism of biological control in soilsuppressive to Rhizoctonia~. Phytopathology 70:404-412.

Lukens, A.J. 1970. Melting-out of Kentucky bluegrass, a low sugar disease.Phytopathology 60: 1276-1278.

Lumsden, A.D., J.A. Lewis, and P.O. Millner. 1983. Effect of compostedsewage sludge on several soilborne pathogens and diseases.Phytopathology 73: 1543-1547.

Madden, L.V. and M.A. Ellis. 1988. How to develop plant diseaseforecasters. p. 191-208. In J. Kranz and J. Rotem (ed.) ExperimentalTechniques in Plant Disease Epidemiology. Springer-Verlag, Berlin.

Madden, L.V., J.K. Knoke, and R. Louie. 1982. Considerations for the use ofmultiple comparison procedures in phytopathological investigations.Phytopathology 72:1015-1017.

Madison, J.H. 1962. Turfgrass ecology. Effects of mowing, irrigation, andnitrogen treatments of Agrositis palustris Huds., 'Seaside' and Agrostistenuis Sibth., 'Highland' on population, yield, rooting, and cover.Agronomy Journal 54:407-412.

Madison, J.H. 1971. Pratical Turfgrass Management. Van NostrandReinhold, New York, NY.

Madison, J.H., L.J. Petersen, and T.K. Hodges. 1960. Pink snowmoId onbentgrass as affected by irrigation and fertilizer. Agronomy Journal52:591-592.

Markland, F.E., E.C. Roberts, and L.R. Frederick. 1969. I~uence O! nitrogenfertilzers on Washington creeping bentgrass, Agrostis palustris Huds.II. Incidence of dollar spot, Sclerotinia homeocaroa, infection.Agronomy Journal 61:701-705.

Mcintosh, M.S. 1983. Analysis of combined experiments. AgronomyJournal 75: 153-155.

229

McKee, W.H., R.H. Brown, and R.E. Blaser. 1969. Effect of clipping and nitrogen fertilization on yield and stands of tall fescue. Crop Science 67:567-570.

Melvin, B.P. and J.M. Vargas. 1994. Irrigation frequency and fertilizer type influence necrotic ring spot of Kentucky Wuegrass. HortScience 29:1028-1030.

Menzies, J.D. 1970. Introduction: the first century of Rhizoctonia solani. p. 3-5. In J.R. Parmeter, Jr. (ed.) Rhizoctonia solani. Biology and Pathology. Univ. Calif. Press, Berkeley, CA.

Miller, S.A. 1982. Biotechnology-based disease diagnosis. Plant Disease 72:188.

Miller, S.A. and R.R. Martin. 1988. Molecular diagnosis of plant disease. Annual Review of Phytopathology 26:409-432.

Monteith, J. 1926. The brown-patch disease of turf: it's nature and control. Bulletin of Green Section of the United States Golf Association 6:127-142.

Monteith, J. and A.S. Dahl. 1928. A comparison of some strains of Rhizoctonia solani in culture. Journal of Agricultural Research 36:897-903.

Monteith, J. and A.S. Dahl. 1932. Turf disease and their corrtol. Bulletin of Green Section of the United States Golf Association 12:85-187.

Monteith, J.L. 1957. Dew. Quarterly Journal of the Royal Meteorological Society 83:322-341.

Moore, L.D., H.B. Couch, and J.R. Bloom. 1963. Influence of environment on diseases of turfgrasses. III. Effect of nutrition, pH, soil temperature, air temperature, and soil moisture on Pythium blight of Highland bentgrass. Phytopathology 53:53-57.

Muse, R.R. and H.B. Couch. 1965. Influence of environment on diseases of turfgrasses. IV. Effect of nutrition and soil moisture on Corticium red thread of creeping red fescue. Phytopathology 55:507-510.

Musser H.B. 1950. Turfgrass Management. McGraw-Hill, New York, NY. N.Y.

230

Nash, A.S. 1988. The Influence of Nitrogen Source and Rate, Application Timing and Irrigation on Quality of Kentucky Bluegrass and Tall Fescue. MS Thesis. Department of Agronomy, University of Maryland, College Park, MD.

Nelson, E.B. 1992. The biological control of turfgrass diseases. Golf Course Management. April, p. 78-90.

Nelson, E.B. and C M . Craft. 1990. Application of top-dressings amended with composts and organic fertilizers for the suppression of brown patch (Rhizoctonia solani) on a creeping bentgrass putting green. Phytopathology 80:121.

Nelson, E.B. and C M . Craft. 1992. Suppression of dollar spot on creeping bentgrass and annual bluegrass turf with compost-amended topdressings. Plant Disease 76:954-958.

Nelson, E.B. and H.A. Hoitink. 1982. Factors affecting suppression of Rhizoctonia solani in container media. Phytopathology 72:275-279.

Nelson, E.B., G.A. Kuter, and H.A. Hoitink. 1983. Effects of fungal antagonists and compost age on suppression of Rhizoctonia damping-off in container media amended with composted hardwood bark. Phytopathology 73:1457-62.

Nutter, F.W., H. Cole, and R.D. Schein. 1983. Disease forecasting system for warm weather Pythium blight of turfgrass. Plant Disease 67:1126-1128.

Oakley, R.A. 1924. Brown-patch investigation. Bulletin of Green Section of the United States Golf Association 4:87-92.

Oakley, R.A. 1925. Some things we have learned about brown-patch. Bulletin of Green Section of the United States Golf Association 5: 75-77.

Papavizas, G.C 1969. Survival of root-infecting fungi in soil. XI. Survival of Rhizoctonia solani as affected by inoculum concentration and various soil amendments. Phytopathologische Zeitschrift 64:101-111.

Papavizas G.C. and C.B. Davey. 1961. Saprophytic behavior of Rhizoctonia in soil. Phytopathology 51:693-699.

Papavizas G.C, C.B. Davey, and R.S. Woodward. 1962. Comparative effectiveness of some organic amendments and fungicides in reducing activity and survival of Rhizoctonia solani in soils. Canadian Journal of Microbiology 8:915-922.

231

Papavizas, G.C., P.B. Adams, R.D. Lumsden, J.A. Lewis, R.L. Dow W A Ayers, and J.G. Kantzes. 1975. Ecology and epidemiology of Rhizoctonia solani in field soil. Phytopathology 65:871-877.

Peacock, C.H. and P.F. Daniel. 1992. A comparison of turgrass response to biologically amended fertilizers. HortScience 27:883-884.

Pepper, E.H. 1965. Nematodes associated with melting-out of turfgrass Plant Disease Reporter 49:519-521.

Piper, C.V. and H.S. Coe. 1919. Rhizoctonia in lawns and pastures. Phytopathology 9:89-92.

Piper, C.V. and R.A. Oakley. 1921. The brown-patch disease of turf. Bulletin of Green Section of the United States Golf Association 1:112-115.

Reidel, R.M. 1979. Nematode problems of northern turfgrasses. p. 59-62. In B.G. Joyner and P.O. Larsen (ed.) Advances in turfgrass pathology. Harcourt Brace Jovanovich, Duluth, MN.

Ritchie, J.T. and D.S. NeSmith. 1991. Temperature and crop development, p. 5-29. In R.J. Hanks and J.T. Ritchie (ed.) Modeling Plant and Soil Systems. Agron. Monogr. 31. ASA, CSSA, and SSSA, Madison, Wl.

Rittenberg, J.H., F.P. Petersen, G.D. Grothans, and S.A. Miller. 1988. Development of a rapid field usable immunoassay format for detection and quantification of Pvthium. Rhizoctonia. and Sclerotinia spp. in plant tissue. Phytopathology 78:1516.

Rodriguez-Kabana, R. 1986. Organic and inorganic nitrogen amendments to soil as nematode suppressants. Journal of Nematology 18:129-135.

Rosenberg, N.J., B.L Blad, and S.B.Verma. 1983. Microclimate: The Biological Environment. J. Wiley and Sons, New York, NY.

Rotem. J. and J. PaW. 1969. Irrigation and plant disease. Annual Review of Phytopathology 7:267-288.

Rouse, D.I. and P.S. Teng. 1984. Understanding computers: a modem tool in plant pathology. Plant Disease 68:365-369.

Rowell J B 1951. Observations on the pathogenicity of Rhizoctonia SoJaoi on bent grasses. Plant Disease Reporter 35:240-242.

Rowell. J.G. and D.E. Walters. 1976. Analyzing data with « J P j J ^ observations on each expenmental unrt. Journal of Agricultural Science 87:423-432.

232

Rowley, L.V. 1991. Applied epidemiology of Rhizoctonia spp. on turfgrass.MS Thesis. Department of Plant Pathology, University ofMassachusetts, Amherst, MA.

Sanford, G.B. 1947. Effect of various soil supplements on the virulence andpersistence of Rhizoctonia solani. Scientific Agriculture 27:533-544.

SAS Institute. 1985. SAS User's Guide: Statistics. 5th ed. SAS Institute,Cary, NC.

Scherm, H. and A.H.C. van Bruggen. 1994. Weather variables associatedwith infection of lettuce by downy mildew (Bremia lactucae) in coastalCalifornia. Phytopathology 84:860-865.

Schumann, G.L. and H.T. Wilkinson. 1992. Research methods andapproaches to the study of diseases in turfgrasses. p. 653-688. InD.V. Waddington, R.N. Carrow, and R.C. Shearman (ed.) Turfgrass.Agron. Monogr. 32. ASA, Madison, WI.

Schumann, G.L., B.B. Clarke, L.V. Rowtey, and L.L. Burpee. 1994. Use ofenvironmental parameters and immunoassays to predict Rhizoctoniablight and schedule fungicide applications on creeping bentgrass.Crop Protection 13:211-218.

Shane, W.W. 1991. Prospects for early detection of Pythium blight epidemicson turfgrass by anitbody-aided monitoring. Plant Disease 75:921-925.

Shaner, G. and R.E. Finney. 1977. The effect of nitrogen fertilization on theexpression of slow-mildewing resistance in Know wheat.Phytopathology 67: 1051-1056.

Shurtleff, M.C. 1953. Brown patch of turf caused by Rhizoctonia solani KUhn.Ph.D. Diss. Department of Plant Pathology, University of Minnesota,St. Paul (Diss. Abst. 53-11120).

Shurtleff. M.C .• T.W. Fermanian. and R. Randell. 1987. Controlling TurfgrassPests. Prentice-Hall. Englewood Cliffs. NJ.

Sikora. R.A. 1992. Management of the antagonistic potential in agriculturalecosystems for the biological control of plant parasitic nematodes.Annual Review of Phytopathology 30:245-270 ..

Skogley. C.R. and C.D. Sawyer. 1992. Field research. p.589-614. InO.V.Waddington. R.N. Carrow. and R.C. Shearman (ed.) Turfgrass. Agron.Monogr.32. M3A. Madison, WI.

233

Slaughter, L.H. and Livingston, D.P., III. 1994. Separation of fructan isomersby high performance anion exchange chromatography. CarbohydrateResearch 253:287-291.

Smiley, R.W. 1972. Use and abuse of the soil pH measurement. Phyto-pathology 62:193-194.

Smiley, R.W., P.H. Demoeden, and B.B. Clarke. 1992. Compendium ofTurfgrass Disease. 2nd ed. American Phytopathology Society, St.Paul, MN.

Smith, D. 1972. Carbohydrate reserves of grasses. p.318-333. In V.B.Youngner and C.M. McKell (ed.) The Biology and Utilization ofGrasses. Academic Press, New York, NY.

Smith, J.D., N. Jackson, and A.R. Woolhouse. 1989. Fungal Diseases ofAmenity Turf Grasses. E. and F.N. Spon, London.

Soika, M.D. and P.L. Sanders. 1991. Effect of various nitrogen sources,organic amendments, and biological control agents on turfgrass qualityand disease development, 1990. p.91. InW.F. Wilcox, (ed.) Biologicaland cultural tests for control of plant diseases. Vol. 6. AmericanPhytopathological Society, St. Paul, MN.

Steel, R.G.D. and J.H. Torrie. 1980. Principles and procedures of statistics.2nd ed. McGraw-Hili, New York, NY.

Sullivan, J.T. and V.G. Sprague. 1943. Composition of the roots and thestubble of perennial ryegrass following partial defoliation. PlantPhysiology 18:656-670.

Sutton, J.C .• T.J. Gillespie. and P.H. Hildebrand. 1984. Monitoring weatherfactors in relation to plant disease. Plant Disease 68:78-84.

Sutton, J.C .• T.J. Gillespie, and T.D.W. James. 1988. Electric monitoring and. use of microprocessors in the field. p.99-113. In J. Kranz and J.

Rotem (ed.) Experimental techniques in plant disease epidemiology.Springer-Verlag, Berlin.

Teng, P.S. and 0.1. Rouse. 1984. Understanding computers: applications inplant pathology. Plant Disease 68:539-543.

Tllor\1)son, D.C., B.B. Clarke, J.R. Heckman. and J.A. Murphy. 1993.Influence of nitrogen source and soil pH on SUrTITlerpatchdevelopment in Kentucky bluegrass. Intemational Turfgrass SocietyResearch Joumal 7:317-323.

234

Thurn, M.C. and N.W. Hummel. 1992. Organic source effects on physicalstability and disease suppression of putting green rootzone mixes. p.189. In Agronomy Abstracts. ASA, Madison, WI.

Tilford, P.E. 1925. Brown patch of lawns and golf greens. Review of AppliedMycology 5:234.

Traquair, J.A. and J.D. Smith, 1981. Spring and summer brown patch ofturfgrass caused by Rhizoctonia ~ in western Canada. CanadianJournal of Plant Pathology 3:207-210.

Turgeon, A.J. 1985. Turfgrass Management. Reston Publishing, Reston, VA.

Turgeon, A.J. and W.A. Meyer. 1974. Effects of mowing height andfertilization level on disease incidence in five Kentucky b1uegrasses.Plant Disease Reporter 58:514-516.

Turner, T.R. 1986. Relationship of soil test levels of phosphorous andpotassh..m to turf maintenance. p. 181-199. In B.C. Joyner (ed.)Advances in Turfgrass Fertility, Proc. Symposium Turfgrass Fertility,Columbus,OH. 20-21 Oct. 1982. Chemlawn, Columbus, OH.

Turner, T.R. and D.V. Waddington. 1983. Soil test calibration forestablishment of turfgrass monostands. Soil Science Society ofAmerica Journal 47:1161-1166.

Turner, T.R. and N.W. Hummel. 1992. Nutritional requirements andfertilization. p.385-439. InD.V. Waddington, R.N. Carrow, and R.C.Shearman (ad.) Turfgrass. Agron. Monogr. 32. ASA, Madison, WI.

Unwin,D.M. 1980. Microclimate Measurement For Ecologists. AcademicPress, New York, NY.

Vargas, J.M. 1994. Management of Turfgrass Diseases. CRC Press, BocaRaton, FL.

Vargas. J.M. and C.W. Laughlin. 1972. The role of Tylenchorhynchus dubiusin the development of Fusarium blight of Merion Kentucky bluegrass.Phytopathology 62:1311-1313.

Vorl and , R.P. and A.H. Epstein. 1994. Development of suppressiveness todiseases caused by Rhizoctonia solani in soils amended withcomposted and noncomposted manure. Plant Disease 78:461-466.

235

Waggoner, P.E. 1981. Progress curves of foliar diseases: their interpretationand use. p. 3-37. In K.J. Leonard and W.E. Fry (ed.) Plant DiseaseEpidemiology. Vol. 1. Population Dynamics and Management.Maanillan Publishing, New York, NY.

Wallace, H.R 1983.lnterations between nematodes and other factors onplants. Journal of Nematology 15:221-227.

Wallace, M. 1993. The national coalition on integrated pest management.Plant Disease 77:315-317.

Wallin, J.R 1963. Dew, its significance and measurement in phytopathology.Phytopathology 53: 1210-1216.

Watkins, J.E., RC. Shearman, and L.A. Wit. 1990. Effect of nitrogen rate andcutting height on brown patch severity, 1989. p.87. InW.F. Wilcox,(ad.) Biological and cultural tests for control of plant diseases. Vol. 5.American Phytopathological Society, St. Paul, MN.

Watscti<e, T.L. and D.V. Waddington. 1974. Effed of nitrogeN-source, rate,and timing on growth and carbohydrates of Merion bluegrass.Agronomy Journal 66:691-696.

Watschke, T.L., P.H. Dernoeden, and D. Shetlar. 1994. Managing TurfgrassPests. CRC PressBoca Raton, Florida.

Watschke, T.L., RE. Sctmidt, and RE. Blaser. 1970. Responses of someKentucky bluegrasses to high temperature and nitrogen fertility. CropScience 10:372-376.

Watson, J.R 1972. Effects of cultural practices in relation to microclimate. p.203-211. In V.b. Youngner and C.M. McKell (ad.) The Biology andUtilization of Grasses. Academic Press, New York.

Westhafer, M.A., J.T. Law, and D.T. Duff. 1982. Carbohydrate quantificationand relationships with N nutrition in cool-season turfgrasses.Agronomy Journal 74:270-274.

Witte, R.S. 1980. Statistics. Holt, Rinehart, and Winston Publishers, NewYork.

Yarwood, C.E. 1978. Water and the infection process. p. 141-164. In T.T.Kozlowski (ad.) Water deficits and plant growth. Vol. V. Water andPlant Disease. Academic Press, New York, NY.

236

Young, H.C., J.M. Prescott, and E.E. Saari. 1978. Role of disease monitoringin preventing epidemics. Annual Review of Plant Pathology 16:263-285.

Youngner, V.B. 1969. Physiology of growth and development. p. 187-216.In A.A. Hanson and F.V. Juska (ed.) Turgrass Science. Agron. Mongr.14. ASA, CSSA, SSSA, Madison, WI.

Youngner, V.B. and F.J. Nudge. 1976. Soil temperature, air temperature,and defoliation effects on growth and nonstructural carbohydratesof Kentucky bluegrass. Agronomy Journal 68:257-260.

Zadoks, J.C. 1984. A quarter century of disease warning, 1958-1983. PlantDisease 68:352-355.

Zanoni, L.J., L.F. Michelson, W.G. Colby, and M. Drake. 1969. Fadorsaffecting carbohydrate reserves of cool season turfgrasses. AgronomyJournal 61: 195-198.

Zarlengo, P.J., C.S. Rothrock, and J.W. King. 1994. Influence of shading onthe response of tall fescue cultivars to Rhizoctonia solani AG-1 IA.Plant Disease 78:126-129.

Zhang, M. 1994. Rhizoctonia mani KUhn Anastomosis Groups and FungiAssociated with Turfgrasses Affected by Brown Patch. MS Thesis.Department of Agronomy, University of Maryland, College Park, MD.

Zummo, N. and A.G. Plakidas. 1958. Brown patch of St. Augustine grass.Plant Disease Reporter 42:1141-1147.

237

CURRICULUM VITAE

Name: Michael A. Fidanza

Pennanent Address: 933 Penn Green RoadAvondale, PA 19311

Degree and date to be conferred: Ph.D., 1995

Date of birth: June 10, 1965

Place of birth: Wilmington, DE

Secondary Education: Kennett High SchoolKennett Square, PA

Collegiate institutions attended:

INSTITUTION DATE ATTENDED

University of Maryland Jan. 1991 - May 1995

Major: Agronomy

DATE OFDEGREE DEGREE

Ph.D. May 1995

Pennsylvania StateUniversity

. Major: Agronomy

Aug. 1987 - May 1989 M.Agr. May 1989

Aug. 1983 - May 1987 B.S.Pennsylvania StateUniversity

Major: Agricultural Science

May 1987

Professional publications:

Dernoeden, P.H., and M.A. Fidanza. 1994. Fenoxaprop activity asinfluenced by auxin-like herbicide application timing. HortScience29:1518-19.

Waddington, D.V., P.J. Landschoot, J.M. Clark, and M.A. Fidanza. 1993.Evaluation of liquid nitrogen sources and the urease inhibitor N-(n-butyl) thiophosphoric triamide on Kentucky bluegrass turf.International Turfgrass Research Journal. 7:512-519.

Fidanza, M.A. and A.J. Turgeon. 1990. The Penn State Agronomy Guide inPENpages. p. 649-653. In F.5. Zazueta (ed.) Third InternationalConference on Computers and Their Use in Agricultural ExtensionPrograms, Orlando, FL. 31 Jan.-1 Feb., 1990. University of Florida,Gainesville. FL.

Fidanza. M.A. and D.V. Waddington. 1990. TurfEXS: An expert system forturfgrass weed management. p.281-286. In F.S. Zazueta (ad.) ThirdInternational Conference on Computers and Their Use in AgriculturalExtension Programs. Orlando. FL. 31 Jan.-1 Feb., 1990. University ofFlorida, Gainesville, FL.

Published abstracts:

Fidanza, M.A. and P.H. Dernoeden. 1994. A brown patch forecast model forperennial ryegrass. Agron. Abstr.:182.

Fidanza, M.A. and P.H. Dernoeden. 1994. A Rhizoctonia blight severitymodel for perennial ryegrass. Phytopathology 84:543.

Fidanza, M.A., P.H. Dernoeden, and M. Zhang. 1994. Developing a degreeday model to predict smooth crabgrass seed germination. Proc.Northeastern Weed Science Society. 48:79.

Fidanza. M.A. and P.H. Demoeden. 1993. Influence of N-source. mowingheight. and irrigation on brown patch severity. Agron. Abstr.:157.

Fidanza. M.A. and P.H. Dernoeden. 1993. Evaluation of pre emergenceherbicides for smooth crabgrass control in Maryland. 1992. Proc.Northeastern Weed Science Society. 47:91-92.

Fidanza. M.A .• P.H. Dernoeden. and M. Zhang. 1993. Envirormentalmonitoring of smooth crabgrass germination. Proc. NortheasternWeed Science Society. 47:7.

Fidanza. M.A. and A.J. Turgeon. 1990. Using the Agronomy Guide inPENpages. p. 23. In E.L. Hatley (ed.) Pennsylvania Lime Fertilizerand Pesticide Conference, State College, PA. 28 March 1990. •Pennsylvania State University, University Park, PA.

Reports published in Fungicide and Nematicide Tests, AmericanPhytopathological Society. St. Paul. MN:

Demoeden. P.H.• H.C. Wetzel. and M.A. Fidanza. 1994. Preventative controlof summer patch with commercial and experimental fungicides. 1993.Fungicide and Nematicide Tests. 49:328.

Demoecfen. P.H., H.C. Wetzel, and M.A. Fidanza. 1994. Summer patchcontrol with Eagle, 1993. Fungicide and Nematicide Tests. 49:327.

Demoeden, P.H., M.A. Fidanza. and H.C. Wetzel. 1994. Brown patch controlin spring seeded ryegrass with reduced fungicide levels, 1993.Fungicide and Nematicide Tests. 49:340.

Demoeclen, P.H.• M.A. Fidanza, and H.C. Wetzel. 1994. Brown patch controlwith ICIA 5504 and subsequent effects on dollar spot. 1993.Fungicide and Nematicide Tests. 49:311.

Demoeden. P.H.• M.A. Fidanza. and H.C. Wetzel. 1994. Brown patch controlwith reduced fungicide levels. 1993. Fungicide and Nematicide Tests.49:339.

Demoeden. P.H., M.A. Fidanza. and H.C. Wetzel. 1994. Curative brownpatch control with Prostar and Chipco 26019. 1993. Fungicide andNematicide Tests. 49:309.

Demoeden. P.H., M.A. Fidanza. and H.C. Wetzel. 1994. Preventative brownpatch control with Prostar and MON 24001. 1993. Fungicide andNematicide Tests. 49:310.

Demoeden, P.H.• M.A. Fidanza. and M. Zhang 1994. Brown patch controlwith BASF 490. Curalan and Sentinel, 1993. Fungicide andNematicide Tests. 49:342.

Dernoeden, P.H.• M.A. Fidanza. and M. Zhang 1994. Brown patch controlwith Rhone Poulenc fungicides. 1993. Fungicide and NematicideTests. 49:341.

Demoeden. P.H. and M.A. Fidanza. 1993. Curative control of red threadwith fungicides. 1992. Fungicide and Nematicide Tests. 48:365.

Demoeden, P.H. and M.A. Fidanza. 1993. Fungicides applied in spring tobentgrass first damaged in fall by dollar spot, 1992. Fungicide andNematicide Tests. 48:348.

Demoeden, P.H., H.C. Wetzel, and M.A. Fidanza. 1993. Preventative controlof summer patch with fungicides, 1992. Fungicide and NematicideTests. 48:360.

oemoecJen, P.H., M.A. Fidanza, and H.C. Wetzel. 1993. Brown patch controlin ryegrass, 1992. Fungicide and Nematicide Tests. 48:371.

Demoeden, P.H., M.A. Fidanza, and H.C. Wetzel. 1993. Brown patch controlwith Sentinel, Chipco 26019, and Experimentals. 1992. Fungicideand Nematicide Tests. 48:369.

Demoeden, P.H., M.A. Fidanza, and H.C. Wetzel. 1993. Preventative brownpatch control with fungicides, 1992. Fungicide and Nematicide Tests.48:370.

Fidanza, M.A., P.H. Demoeden, and S.W. Potter. 1993. Residual dollar spotcontrol on a perennial ryegrass fairway, 1992. Fungicide andNematicide Tests. 48:372.

Demoeden, P.H. and M.A. Fidanza. 1992. Brown patch control withIprodione and experimental fungicides, 1991. Fungicide andNematicide Tests. 47:313.

Demoeden, P.H. and M.A. Fidanza. 1992. Curative brown patch control withMON 24017, 1991. Fungicide and Nematicide Tests. 47:314.

Demoeden, P.H. and M.A. Fidanza. 1992. Curative control and residualbrown patch efficacy of Sentinel and Rizolex, 1991. Fungicide andNematicide Tests. 47:311.

Demoeden, P.H. and M.A. Fidanza. 1992. Preventative brown patch controlin bentgrass, 1991. Fungicide and Nematicide Tests. 47:283.

Demoeden, P.H. and M.A. Fidanza. 1992. Preventative control of sunmerpatch, 1991. Fungicide and Nematicide Tests. 47:304.

Demoeden, P.H. and M.A. Fidanza. 1992. Ryegrass density improved withfungicides following scalping and brown patch attack, 1991.Fungicide and Nematicide Tests .. 47:312.

Fidanza, M.A., S.W. Potter, and P.H. Demoeden. 1992. Control ofRhizoctonia spp. on a golf course fairway, 1991. Fungicide andNematicide Tests. 47:314.

Research and extension conference presentations:

• -Turf Disease Diagnosis and Management-. 1995 Green IndustryProfessional Seminar. N. Virginia Community College, Annandale, VA.18 Jan. 1995.

• -Managing Brown Patch-. Maryland Turfgrass Conference and TradeShow. Baltimore, MD. 11 Jan. 1995.

• -Brown Patch Managemenf. National Capital Area Pest ManagementConference. Ellicott City, MD. 7 Dee 1994.

• -Disease Identification and Contror. Professional Turfgrass ManagementSeminar, N. Virginia Community College, Annandale, VA. 31 Aug 1994.

• Brown patch and crabgrass research. Maryland Turf Research Field Day,Silver Spring, MD. 13 July 1994.

• -Brown Patch Research in Maryland-. Maryland Sod Growers Association.Laurel, MD. 10 March 1994.

• -Brown Patch Research in Maryland, 1993-. Maryland TurfgrassConference and Trade Show. Baltimore, MD. 4 Jan. 1994.

• Brown patch research. Maryland Turf Extension Field Day, Silver Spring,MD. 8 July 1993.

• -Brown Patch Research, 1992- and -Crabgrass Research, 1992-. MarylandTurfgrass Conference and Trade Show. Baltimore, MD. 5 Jan. 1993.

• -Diagnosing and Dealing with Brown Patch-. 1992. National Capital AreaPest Management Conference. Silver Spring, MD. 1 Dec. 1992.

• Brown patch research. Maryland Turgrass Research Field Day, SilverSpring, MD. 15 July 1992.

• -Brown Patch Research in Maryland, 1991-. Maryland TurfgrassConference and Trade Show. Baltimore, MD. 6 Jan. 1992.

• Brown patch research. Maryland Turf Extension Field Day, Silver Spring,MD. 18 July 1991.

• Turf Information in PENpages. Penn State Turf Field Day, University Park,PA. 10 Aug. 1988.

• -PENpages Information Network-. Soil Scientist Work Conference,University Park, PA. 17 March 1988.

Extension articles:

• Fidanza, M.A. 1994...Turfgrass disease forecasts. INAG, an electronicbulltetin board for golf course superintendents in Maryland. Provided dailyreports on-line from June through August, 1994.

• Fidanza, M.A. 1988. Agronomy developments in PENpages: a final notefor now. Ag Information Computer Weekly 2(9).

• Fidanza. M.A. 1988. Agronomy information in PENpages. Ag InformationComputer Weekly 2(1).

• Fidanza. M.A. 1988. Alfalfa variety trials report in PENpages. AgInformation Computer Weekly 2(2).

• Fidanza, M.A. 1988. Birdsfoot trefoil information in PENpages. AgInformation Computer Weekly 2(2).

• Fidanza, M.A. 1988. Do hay preservatives harm horses? Ag InformationComputer Weekly 2(4).

• Fidanza, M.A. 1988. Field crop newsletter now in PENpages. AgInformation Computer Weekly 2(3).

• Fidanza, M.A. 1988. Hortia,IIturallnformation on PENpages. p.3. In J.N.Moore (ed.) Greenleaf, Association of Collegiate Branches, AmericanSociety for Horticultural Science. Alexandria, VA.

• Fidanza, M.A. 1988. Learn about land use capability classes. AgInformation Computer Weekly 2(6).

• Fidanza, M.A. 1988. Pennsylvania's Master Com Growers Association. AgInformation Computer Weekly 2(5).

• Fidanza, M.A. 1988. Time to think about your lawn. Ag InformationComputer Weekly 2(7).

Teaching activities:

1991 - 1995 Univeristy of Maryland: • Lectured in undergradutateturf management courses

• Assisted with Advanced TurfIPM Short Course

1987 - 1990 Pennsylvania State University • Lectured in undergraduateturf, soil, and crop sciencecourses

Academic honors:

1993-94 • Selected as Outstanding Graduate Student for the NortheastRegional Branch of the American Society of Agronomy.

• Selected as Outstanding Graduate Student for the Department ofAgronomy, University of Maryland.

1994 • Honorable Mention, Graduate Student Speaking Contest,American Society of Agronomy Meetings, Seattle, WA, Nov. 12-18,1994 .

• Participated in the Governor's Summer Scholars Program inAgriculture and Natural Resources. June 27-July 1, 1994.

• Second Place, Graduate Student Speaking Contest at thePotomac Division Meetings of the American PhytopathologySociety, Carlise, PA, Feb. 9-11,1994.

1989 • Induded into Gamma Sigma Delta Honor Society for Agriculture .• Named to Who's Who List of College Students in America.

Professional affiliations:

• American Phytopathological Society, since 1992• American Society of Agronomy, since 1987• American Society of Horticultural Science, since 1995• Council for Agricultural Science and Technology, since 1989• Crop Science Society of America, since 1991• International Turfgrass Society, since 1990• Northeastern Weed Science Society of America, since 1993• Soil and Water Conservation Society, since 1987• American Floral Meadow Soceity, since 1993

Professional positions held:

Graduate Research AssistantJan. 1991 - May 1995Department of Agronomy, University of Maryland

Research AssistantMay 1989 - Dec. 1990Department of Agronomy, Pennsylvania State University

Graduate Extension AssistantAug. 1988 - May 1989Department of Agronomy, Pennsylvania State University

Graduate AssistantAug. 1987 - May 1988Agricultural Information Services, Pennsylvania State University