Dr. Christy Sprague
Associate Professor
A466 Plant and Soil Sciences Building
Department of Crop and Soil Sciences
Michigan State University
East Lansing, MI 48824-1325
Phone: (517) 355-0271
Fax: (517) 353- 5174
E-mail: sprague1@msu.edu
Joined Department: September 2003
Appointment: 50% Research, 50% Extension
Education
Ph.D. in Crop and Soil Sciences, Michigan State University,1999
M.S. in Agronomy, University of Illinois, 1996
B.S. in Crop and Soil Sciences, Michigan State University, 1993
Research Interests
Dr. Sprague's research and extension program focuses on integrated weed management, biology, ecology, and management of emerging problematic weeds, and understanding the interactions with weeds and other pests and pest/crop management practices. Her program emphasizes weed management in soybeans, sugar beets, dry beans, and potatoes.
Selected Recent Publications
Bollman, S. L., C. L. Sprague, and D. Penner. 2008. Physiological basis for tolerance of sugar beet varieties to s-metolachlor and dimethenamid-p. Weed Sci. 56:18-25.
Bollman, S. L. and C. L. Sprague. 2007. Optimizing s-metolachlor dimethenamid-p in sugar beet micro-rate treatments. Weed Technol. 21:1054-1063.
Harder, D. B., C. L. Sprague, and K. A. Renner. 2007. Effect of soybean row width and population on weeds, crop yield, and economic return. Weed Technol. 21:744-752.
Ott, E. J., C. K. Gerber, D. B. Harder, C. L. Sprague, and W. G. Johnson. 2007. Prevalence and influence of stalk-boring insectson glyphosate activity on Indiana and Michigan giant ragweed (Ambrosia trifida). Weed Technol. 21:526-531.
Harder, D. B., C. L. Sprague, C. D. DiFonzo, K. A. Renner, E. J. Ott, and W. G. Johnson. 2007. Influence of stem boring insects on common lambsquarters (Chenopodium album) control in soybean with glyphosate. Weed Technol. 21:241-248.
Steckle, L. E., C. S. Sprague, E. W. Stoller, L. M. Wax, F. W. Simmons. 2007. Tillage, cropping systems, and soil depth effects on common waterhemp (Amaranthus rudis) seed-bank persistence. Weed Sci. 55:235-239.
Hock, S. M., S. Z. Knezevic, W. G. Johnson. C. Sprague, and A. R. Martin. 2007. Weedsoft: Effects of corn-row spacing for predicting herbicide efficacy on selected weed species. Weed Technol. 21:219-224.
Zuver, K. A., M. L. Bernards, J. J. Kells, C. L. Sprague, C.
R. Medlin, and M. M. Loux. 2006. Evaluation of postemergence weed
control strategies in herbicide strategies in herbicide-resistant isolines of
corn (Zea mays). Weed Technol.
20:172-178.
Bierman, R. E., D. E. Riechers, C. L. Sprague, G. Bollero,
and W. L. Pedersen. 2005.
Fungicide-herbicide interaction in soybean (Glycine max). Crop Protect. 25:134-139.
Bunting, J. A., C. L. Sprague, and D.
Davis, A. S., J. Cardina, F. Forcella, G. A. Johnson, G.
Kegode, J. L. Lindquist, E. C. Luschei, K. A. Renner, C. L. Sprague, and M. M. Williams II. 2005. Environmental factors affecting seed persistence of annual weeds across
the
Schmidt, A. A., W. G. Johnson, D. A. Mortensen, A. R.
Martin, J. A. Dille, D. E. Peterson, C. Guza, J. J. Kells, R. D. Lins, C. M.
Boerboom, C. L. Sprague, S. Z. Knezevic, F. W. Roeth, C. R. Medlin, and T. T.
Bauman. 2005. Evaluation of corn (Zea mays L.) yield loss
estimations by WeedSOFTÆ in the North Central Region. Weed Technol. 19:1056-1064.
Williams II, M. M., J. K. Pataky, J. N. Nordby, D. E.
Riechers, C. L. Sprague, and J. B. Masiunas. 2005. Cross-sensitivity in sweet
corn to nicosulfuron and mesotrione applied postemergence. HortSci. 40(6):1801-1805.
Bunting, J. A., C. L. Sprague, and D.
Bunting, J. A., C. L. Sprague, and D.
Bunting, J. A., C. L. Sprague, and D.
Bunting, J. A., C. L. Sprague, and D.
Hasty, R. F., C. L. Sprague, and A. G. Hager. 2004. Weed control with fall and early preplant herbicide applications in
no-till soybean (Glycine max). Weed
Technol. 18:887-892.
Maertens, K. D., C. L. Sprague, P. J. Tranel, and R. A.
Hines. 2004. Amaranthus hybridus populations resistant to
ALS-inhibiting and triazine herbicides. Weed Res. 44:21-26.
Steckel, L. E., C. L. Sprague, E. W. Stoller, and L. M.
Wax. 2004. Temperature effects on germination of nine
Amaranthus species. Weed Sci.
52:217-221.
Steckel L. E. and C. L. Sprague. 2004. Common waterhemp interference in corn. Weed Sci. 52:359-364.
Steckel, L. E., and C. L. Sprague. 2004. Late-season common waterhemp interference in wide- and narrow-row
soybean. Weed Technol. 18:947-952.
Steckel, L. E., C. L. Sprague, E. W. Stoller, L. M. Wax, and
F. W. Simmons. Common waterhemp
emergence as affected by crop and tillage over five years. Weed Sci. (Accepted)
Gower, S. A., M. M. Loux, J. Cardina, S. K. Harrison, P. L.
Sprankle, N. J. Probst, T. T. Bauman, W. Bugg, W. S. Curran, R. S. Currie, R.
G. Harvey, W. G. Johnson, J. J. Kells, M. D. K. Owen, D. L. Regehr, C. H.
Slack, M. Spaur, C. L. Sprague, M. VanGessel, and B. G. Young. 2003. Effect of postemergence glyphosate application timing on weed control
and grain yield in glyphosate-resistant corn: Results of a two-year multi-state study. Weed Technol. 17:821-828.
Steckel, L. E., C. L. Sprague, A. G. Hager, F. W. Simmons,
and G. Bollero. 2003. Effects of shading on common waterhemp growth
and development. Weed Sci. 51:898-903.
Steckel, L. E., F. W. Simmons, and C. L. Sprague. 2003. Soil factor effects on the tolerance of two corn hybrids to isoxaflutole
plus flufenacet. Weed Technol.
17:599-604.
Hager, A. G. and C. L. Sprague. 2002. A contemporary, color-enhanced herbicide site of action bulletin. Journal of Extension 40:2. The Journal of Extension is the official
refereed journal of the United States Cooperative Extension System. Available at:
http://www.joe.org/joe/2002april/tt4.html.
Steckel, L. E., C. L. Sprague, and A. G. Hager. 2002. Common waterhemp (Amaranthus rudis) control in Corn (Zea mays) with single preemergence and sequential applications of residual herbicides. Weed Technol. 16:755-761.