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G. Tylka, Fall is Ideal Time to Check for Presence of SCN, Integrated crop management news, 2008.
G. L. Tylka and Marett, C. C., Comparing Yields and Nematode Control of Soybean Varieties with Different Sources of SCN Resistance in Strip Trials, 2008.
G. L. Tylka, Comparing Nematode Management Products on Corn in Strip Trials, 2011.
G. Tylka, It is Time to Sample for Corn Nematodes, Integrated crop management news, 2009.
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. Tylka, A biorational approach to soybean cyst nematode management in Iowa, Leopold Center Progress Reports, vol. 3, pp. 41-44, 1994.
G. L. Tylka, Niblack, T. L., Walk, T. C., Harkins, K. R., Barnett, L., and Baker, N. K., Flow cytometric analysis and sorting of Heterodera glycines eggs, Journal of nematology, vol. 25, no. 4, p. 596, 1993.
G. L. Tylka, Symptoms of SCN Damage Apparent Early, Yield Loss Likely Great in 2012, 2012.
G. Tylka, Winter Annual Weeds and SCN–Is There Cause for Concern, Integrated crop management news, 2008.
G. Tylka, Now is the Time to Sample for Corn Nematodes, Integrated crop management news, 2008.
G. L. Tylka, Managing Soybean Cyst Nematode for Maximum Soybean Productivity, 2008 Illinois Crop Protection Technology Conference, p. 7, Submitted.
G. L. Tylka and da Silva, M. Batista, Effects of Seed Treatments and a Soil-applied Nematicide on Iowa Corn Yields and Nematode Population Densities—2011, 2012.
G. Tylka, Spring Sampling OK for Two Corn Nematode Species, Integrated crop management news, 2008.
G. Lee Tylka, Interactions of vesicular-arbuscular mycorrhizal fungi with Heterodera glycines and soil actinomycetes, University of Georgia, 1990.
G. L. Tylka and Marett, C. C., Distribution of the Soybean Cyst Nematode, Heterodera glycines, in the United States and Canada: 1954 to 2014, Plant Health Progress, no. doi:10.1094/PHP-BR-14-0006, 2014.
G. L. Tylka, Hundreds of SCN-resistant Soybean Varieties Available for 2014, 2014.
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. L. Tylka and Flynn, P., Interpreting SCN soil sample results. Iowa State University, University Extension, 1999.
G. L. Tylka, MAXIMIZING EFFECTIVENESS OF EXTENSION EDUCATION EFFORTS, JOURNAL OF NEMATOLOGY, vol. 42, no. 3. SOC NEMATOLOGISTS PO BOX 311, MARCELINE, MO 64658 USA, pp. 274-275, 2010.
G. L. Tylka, New Approach to Assessing Possible Nematode Damage to Corn, 2012.
G. Tylka, New cyst nematode species on corn, Integrated crop management, 2007.
G. Tylka, Check SCN Resistant Soybean Roots for SCN Females, Integrated crop management news, 2009.
G. L. Tylka, Hussey, R. S., and Roncadori, R. W., INTERACTION OF SOYBEAN AND HETERODERA GLYCINES AS AFFECTED BY VESICULAR-ARBUSCULAR MYCORRHIZAL FUNGI AND PHOSPHORUS FERTILITY, JOURNAL OF NEMATOLOGY, vol. 20, no. 4. SOC NEMATOLOGISTS 3012 SKYVIEW DRIVE, LAKELAND, FL 33801-7072, pp. 662-662, 1988.
G. L. Tylka, Fall Time to Sample for SCN—But Not for Nematodes That Feed on Corn, 2011.
G. Tylka, SCN females on roots signal infestations and possibly ineffectiveness of resistance, Integrated crop management, 2007.
G. L. Tylka and Wisner, R. N., Soybean rust and the food processing industry, Food technology, vol. 59, no. 6, 2005.
G. L. Tylka, Fall Soil Sampling for SCN Can Pay Big Dividends in 2013, 2012.
G. Tylka, Fall Is Great Time to Sample For SCN, But Not Corn Nematodes, Integrated crop management news, 2009.
G. L. Tylka, Gebhart, G. D., and Marett, C. C., Performance of SCN-resistant soybean varieties in fields infested with different soybean cyst nematode HG types, PHYTOPATHOLOGY, vol. 100, no. 6. AMER PHYTOPATHOLOGICAL SOC 3340 PILOT KNOB ROAD, ST PAUL, MN 55121 USA, pp. S190-S190, 2010.
G. Tylka, Spring Sampling Not Recommended for Most Corn Nematodes, Integrated crop management, 2007.
G. L. Tylka, Variety Trial Results Show Differences in SCN Control Among Varieties, 2012.
G. Tylka, Corn Nematodes and Soybean Cyst Nematode: Similar But Very Different, Integrated crop management news, 2010.
G. L. Tylka, Gebhart, G. D., and Marett, C. C., Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode in Southeast Iowa in 2005, 2005.
G. Tylka, Soybean cyst nematode, Iowa State University. Cooperative Extension Service (USA), 1994.
G. Tylka and Robertson, A., Surveying Iowa for SCN, Integrated crop management, 2007.
G. L. Tylka, Distribution of the Soybean Cyst Nematode in Iowa: 1995-1996 versus 2007, Submitted.
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.
G. L. Tylka, Now is the Time to Look for SCN Females on Soybean Roots, 2012.
G. Tylka and Marett, C., Effects of N-Hibit Seed Treatment on Soybean Yields–2008 Iowa Research, Integrated crop management news, 2008.
G. Tylka, SCN Confirmed for First Time in Lyon County, Integrated crop management news, 2008.
G. L. Tylka, Gebhart, G. D., and Marett, C. C., Northern Iowa Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode—2003, 2003.
G. L. Tylka, Know Your Choices: Hundreds of SCN-resistant Soybean Varieties For Iowa, 2011.
G. Tylka and Marett, C., Field testing of N-Hibit seed treatment in 2007 for management of SCN in Iowa, Integrated crop management, 2007.
G. L. Tylka, Management of nematode diseases [recurso electrónico]: options., Submitted.
G. L. Tylka, Soybean cyst nematoderesistant varieties for Iowa, Iowa State University, Ext. Publ. Pm-1649, vol. 1649, pp. 1-26, 2002.
G. Lee Tylka and Mullaney, M. P., Soybean cyst nematode-resistant soybean varieties for Iowa. Iowa State University, University Extension, 2002.
J. M. Thompson and Tylka, G. L., Differences in hatching of Heterodera glycines egg-mass and encysted eggs in vitro, Journal of nematology, vol. 29, no. 3, p. 315, 1997.
N. Tatalovic, Tylka, G. L., and Leandro, L. F., Influence of watering on the dynamics of Heterodera glycines and Fusarium virguliforme interaction in soybean roots., PHYTOPATHOLOGY, vol. 102, no. 7. AMER PHYTOPATHOLOGICAL SOC 3340 PILOT KNOB ROAD, ST PAUL, MN 55121 USA, pp. 118-118, 2012.
N. Tatalovic, Tylka, G. L., and Leandro, L. F., Effect of watering regime and Fusarium virguliforme (Fv) infection on location of soybean cyst nematode (SCN) syncytia in soybean roots, PHYTOPATHOLOGY, vol. 103, no. 6. AMER PHYTOPATHOLOGICAL SOC 3340 PILOT KNOB ROAD, ST PAUL, MN 55121 USA, pp. 143-143, 2013.
N. Tatalovic, Tylka, G. L., and Leandro, L. F., Microscopic observation of the interaction between the soybean sudden death syndrome pathogen and soybean cyst nematode, in soybean roots, Phytopathology, vol. 101, no. 6, p. S175, 2011.

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