Publications

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Submitted
G. L. Tylka, Todd, T. C., Niblack, T. L., MacGuidwin, A. E., and Jackson, T., “Sampling for Plant-parasitic Nematodes in Corn Strip Trials Comparing Nematode Management Products”, Submitted.
G. L. Tylka, “Soybean cyst nematode-resistant soybean varieties for Iowa. PM 1649. Iowa State Univ”, Ext. Serv., Ames. Soybean cyst nematode-resistant soybean varieties for Iowa. PM, vol. 1649, Submitted.
E. L. Davis and Tylka, G. L., “Symptoms and Signs”, Submitted.
2013
G. L. Tylka, “SCN Females Already Seen on Soybean Roots”, 2013.
2012
G. L. Tylka, “Soybean Cyst Nematode Reproduction High in 2012”, 2012.
G. L. Tylka, “Spring Sampling Not Recommended for Nematodes on Corn—Except for Sandy Fields”, 2012.
G. L. Tylka, “Stunted, Yellowing or Wilting Corn: Could Nematodes Be the Cause?”, 2012.
G. L. Tylka, “Symptoms of SCN Damage Apparent Early, Yield Loss Likely Great in 2012”, 2012.
2010
J. L. Rotundo, Tylka, G. L., and Pedersen, P., “Source of Resistance Affect Soybean Yield, Yield Components, and Biomass Accumulation in-Infested Fields”, Crop science, vol. 50, no. 6, pp. 2565-2574, 2010.
D. Mueller, Robertson, A., Sisson, A., and Tylka, G., Soybean Diseases. Iowa State University University Extension, 2010.
2009
M. Studham, MacIntosh, G. C., Avendaño, F., Soh, D., and Tylka, G. L., “The soybean resistance gene Rag1 does not protect against soybean cyst and root-knot nematodes”, Plant Health Progress, no. April, 2009.
N. P. Rogovska, Blackmer, A. M., and Tylka, G. L., “Soybean yield and soybean cyst nematode densities related to soil pH, soil carbonate concentrations, and alkalinity stress index”, Agronomy journal, vol. 101, no. 5, pp. 1019-1026, 2009.
T. Niblack, Tylka, G. L., Arelli, P., Bond, J., Diers, B., Donald, P., Faghihi, J., Ferris, V. R., Gallo, K., and Heinz, R. D., “A standard greenhouse method for assessing soybean cyst nematode resistance in soybean: SCE08 (Standardized Cyst Evaluation 2008)”, Plant Health Progress doi, vol. 10, 2009.
2008
G. Tylka, “SCN Confirmed for First Time in Lyon County”, Integrated crop management news, 2008.
G. Tylka, “Soil Sample Results Can Reveal if SCN Management is Working”, Integrated crop management news, 2008.
G. Tylka, “Soybean cyst nematode confirmed in Ida County in 2008”, Integrated crop management news, 2008.
G. Tylka, “Soybean Cyst Nematode Females now Apparent on Soybean Roots”, Integrated crop management news, 2008.
G. L. Tylka, “Soybean cyst nematode management field guide”, 2008.
G. Tylka, “Spring Sampling OK for Two Corn Nematode Species”, Integrated crop management news, 2008.
2007
G. Tylka, “Sample fields this fall for SCN to figure out 2007 or plan for 2008”, Integrated crop management, 2007.
G. Tylka, “Sample now for most corn nematodes”, Integrated Crop Management, 2007.
G. Tylka, “SCN females on roots signal infestations and possibly ineffectiveness of resistance”, Integrated crop management, 2007.
G. Tylka, “SCN-resistant soybean varieties: Not all are created equal”, Integrated crop management, 2007.
V. Lawson, Tylka, G. L., Marett, C. C., and Gebhart, G. D., “SCN-Resistant Soybean Variety Trial”, 2007.
P. Pedersen and Tylka, G., “Soybean cyst nematode and nematicide affect growth pattern of various soybean varieties in Iowa.”, JOURNAL OF NEMATOLOGY, vol. 39, no. 1. SOC NEMATOLOGISTS PO BOX 311, MARCELINE, MO 64658 USA, pp. 98-98, 2007.
F. Avendano, O'Neal, M. E., and Tylka, G. L., “Soybean cyst nematode and soybean aphid interactions on soybean.”, JOURNAL OF NEMATOLOGY, vol. 39, no. 1. SOC NEMATOLOGISTS PO BOX 311, MARCELINE, MO 64658 USA, pp. 85-85, 2007.
G. Tylka, “Soybean cyst nematode: Still a major threat to soybean production”, Integrated crop management, 2007.
G. Tylka, “Spring Sampling Not Recommended for Most Corn Nematodes”, Integrated crop management, 2007.
G. Tylka and Robertson, A., “Surveying Iowa for SCN”, Integrated crop management, 2007.
2006
V. Lawson, Tylka, G. L., Marett, C. C., and Gebhart, G. D., “Soybean cyst nematode resistant soybean trial”, 2006.
P. A. Donald, Pierson, P. E., St Martin, S. K., Sellers, P. R., Noel, G. R., MacGuidwin, A. E., Faghihi, J., Ferris, V. R., Grau, C. R., and Jardine, D. J., “Soybean Cyst Nematode-Resistant and Suseptible Culticar Yield in Infested Soil in North Central USA”, Journal of Nematology, vol. 38, no. 1, pp. 76-82, 2006.
G. M. Tabor, Tylka, G. L., and Bronson, C. R., “Soybean stem colonization by genotypes A and B of Cadophora gregata increases with increasing population densities of Heterodera glycines”, Plant disease, vol. 90, no. 10, pp. 1297-1301, 2006.
2005
N. Rogovska, Blackmer, A., and Tylka, G., “Soil pH and Carbonates Effects on Soybean Cyst Nematode Population Densities.”, 2005.
R. N. Wisner and Tylka, G. L., “Soybean Rust and the Food Processing Industry”, 2005.
G. L. Tylka and Wisner, R. N., “Soybean rust and the food processing industry”, Food technology, vol. 59, no. 6, 2005.
2003
C. Grau, Kurtzweil, N., and Tylka, G. L., “Soil pH influences soybean disease potential”, The yield II project: Research-based soybean management information. Iowa Soybean Rev, no. 14, 2003.
J. Wang, Niblack, T. L., Tremain, J. A., Wiebold, W. J., Tylka, G. L., Marett, C. C., Noel, G. R., Myers, O., and Schmidt, M. E., “Soybean cyst nematode reduces soybean yield without causing obvious aboveground symptoms”, Plant Disease, vol. 87, no. 6, pp. 623-628, 2003.
2002
G. Lee Tylka and Mullaney, M. P., Soybean cyst nematode-resistant soybean varieties for Iowa. Iowa State University, University Extension, 2002.
G. L. Tylka, “Soybean cyst nematoderesistant varieties for Iowa”, Iowa State University, Ext. Publ. Pm-1649, vol. 1649, pp. 1-26, 2002.
F. W. Nutter Jr, Tylka, G. L., Guan, J., Moreira, A. J. D., Marett, C. C., Rosburg, T. R., Basart, J. P., and Chong, C. S., “Symposium Papers-Application of GIS and GPS Precision Agriculture Technologies in Nematology and Plant Pathology Presented at the joint American Phytopathological Society, Society of Nematologists”, Journal of Nematology, vol. 34, no. 3, pp. 222-231, 2002.
2001
N. Atibalentja, Noel, G. R., Donald, P. A., Melakeberhan, H., Anderson, T. R., Chen, S., Faghihi, J., Ferris, J. M., Grau, C. R., and Hershman, D. E., “Soybean yield and Heterodera glycines population dynamics in the Midwestern US and Ontario, Canada”, Journal of Nematology, vol. 32, p. 249, 2001.
2000
J. Wang, Donald, P. A., Niblack, T. L., Bird, G. W., Faghihi, J., Ferris, J. M., Grau, C., Jardine, D. J., Lipps, P. E., and MacGuidwin, A. E., “Soybean cyst nematode reproduction in the north central United States”, Plant Disease, vol. 84, no. 1, pp. 77-82, 2000.
G. A. Kraus, Jones, C. D., and Tylka, G. L., “Synthesis of glycinoeclepin A analogs.”, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, vol. 220. AMER CHEMICAL SOC 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, pp. U62-U62, 2000.
1999
F. Workneh, Yang, X. B., and Tylka, G. L., “Soybean brown stem rot”, Phytophthora sojae, and Heterodera glycines, pp. 844-850, 1999.
F. Workneh, Yang, X. B., and Tylka, G. L., “Soybean brown stem rot, Phytophthora sojae, and Heterodera glycines affected by soil texture and tillage relations”, Phytopathology, vol. 89, no. 10, pp. 844-850, 1999.
T. L. Niblack and Tylka, G. L., “Soybean cyst nematode management guide”, North Central Soybean Research Program. University of Missouri Printing Service. Columbia, MO, 1999.
1996
G. P. Munkvold, Tylka, G. L., and Yang, X. B., Soybean: Disease-resistant Varieties for Iowa. Iowa State University, University Extension, 1996.
W. L. Gavassoni, Munkvold, G. P., and Tylka, G. L., “Spatial dependence of soybean cyst nematode and egg populations”, Phytopathology, vol. 86, p. S86, 1996.
G. A. Kraus, Louw, S. J. Vander, Tylka, G. L., and Soh, D. H., “Synthesis and testing of compounds that inhibit soybean cyst nematode egg hatch”, Journal of Agricultural and Food Chemistry, vol. 44, no. 6, pp. 1548-1550, 1996.
1995
D. W. Dickson, Niblack, T. L., A JOHNSON, W. I. L. L. I. A. M., STARR, J. A. M. E. S. L., TODD, T. I. M. C., JOHNSON, C. H. A. R. L. E. S. S., THOMAS, S. T. E. V. E. H., and Tylka, G. L., “Society of Nematologists”, Hyattsville, Md, 1995.

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