Publications

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Journal Article
T. L. Niblack, Lambert, K. N., and Tylka, G. L., A model plant pathogen from the kingdom animalia: Heterodera glycines, the soybean cyst nematode, Annu. Rev. Phytopathol., vol. 44, pp. 283-303, 2006.
J. O. Paz, Batchelor, W. D., Tylka, G. L., and Hartzler, R. G., A modeling approach to quantify the effects of spatial soybean yield limiting factors, Transactions of the ASAE, vol. 44, no. 5, pp. 1329-1334, 2001.
M. T. McCarville, O’Neal, M., Tylka, G. L., Kanobe, C., and MacIntosh, G. C., A nematode, fungus, and aphid interact via a shared host plant: implications for soybean management, Entomologia Experimentalis et Applicata, vol. 143, no. 1, pp. 55-66, 2012.
G. M. Tabor, ,, Tylka, G. L., Roorda, R., and Bronson, C. R., A new greenhouse method to assay soybean resistance to brown stem rot, Plant disease, vol. 90, no. 9, pp. 1186-1194, 2006.
S. A. A. Rizvi, Yang, X. B., Tylka, G. L., and McGee, D. C., Occurrence of Pythium species isolated diseased soybean seedlings in Iowa soybean fields, Phytopathology, vol. 84, p. 1123, 1994.
P. W. Jones, Tylka, G. L., PERRY, R., Perry, R. N., and Wright, D. J., The physiology and biochemistry of free-living and plant-parasitic nematodes, The physiology and biochemistry of free-living and plant-parasitic nematodes, 1998.
F. Workneh, Tylka, G. L., Yang, X. B., Faghihi, J., and Ferris, J. M., Regional assessment of soybean brown stem rot, Phytophthora sojae, and Heterodera glycines using area-frame sampling: Prevalence and effects of tillage, Phytopathology, vol. 89, no. 3, pp. 204-211, 1999.
G. L. Tylka, Sanogo, C., and Souhrada, S. K., Relationships among Heterodera glycines population densities, soybean yields, and soil pH, J. Nematol, vol. 30, pp. 519-520, 1998.
G. L. Tylka, SANORGO, С., and Souhrada, S. K., Relationships among soybean cyst nematode population densities, soybean yields and soil pH, Proceedings of the National Soybean Cyst Nematode Conference, Orlando, FL, USA, p. 25, 1999.
G. M. Tabor, Tylka, G. L., Cianzio, S. C., and Bronson, C. R., Resistance to Phialophora gregata is expressed in the stems of resistant soybeans, Plant disease, vol. 87, no. 8, pp. 970-976, 2003.
J. A. Browde, Tylka, G. L., Pedigo, L. P., and Owen, M. D. K., Responses of Heterodera glycines populations to a postemergence herbicide mixture and simulated insect defoliation, Journal of nematology, vol. 26, no. 4, p. 498, 1994.
T. L. Niblack, Arelli, P. R., Noel, G. R., Opperman, C. H., Orf, J. H., Schmitt, D. P., Shannon, J. G., and Tylka, G. L., A revised classification scheme for genetically diverse populations of Heterodera glycines, Journal of nematology, vol. 34, no. 4, p. 279, 2002.
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. 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.
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.
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.
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.
G. L. Tylka, Soybean cyst nematoderesistant varieties for Iowa, Iowa State University, Ext. Publ. Pm-1649, vol. 1649, pp. 1-26, 2002.
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.
J. A. Browde, Pedigo, L. P., Owen, M. D. K., and Tylka, G. L., Soybean yield and pest management as influenced by nematodes, herbicides, and defoliating insects, Agronomy journal, vol. 86, no. 4, pp. 601-608, 1994.
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.
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.
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.
G. L. Tylka, Sisson, A. J., Jesse, L. C., Kennicker, J., and Marett, C. C., Testing for Plant-parasitic Nematodes that Feed on Corn in Iowa 2000–2010. Online, Plant Health Progres, 2011.
F. W. Nutter, Moreira, A. J. D., Tylka, G. L., Marett, C. C., Rosburg, T., Basart, J. P., and Chong, C. S., Use of Remote Sensing and GIS Technologies to Diagnose and Quantify Plant Stress in Soybean, Tenth Annual Iowa Space Grant Conference Proceedings, section IV-2, 2000.
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., Use of remote sensing to detect plant stress caused by soybean cyst nematode, J. Nematol, vol. 34, pp. 222-231, 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., Use of remote sensing to detect soybean cyst nematode-induced plant stress, Journal of nematology, vol. 34, no. 3, p. 222, 2002.
G. L. Tylka, Yield losses of Heterodera glycines-resistant soybean cultivars in Iowa in 1996, J. Nematol, vol. 29, p. 610, 1997.

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