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G. L. Tylka, Gebhart, G. D., Marett, C. C., and Mullaney, M. P., Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode in Iowa--2008. Iowa State University University Extension, 2010.
G. L. Tylka and Flynn, P., Interpreting SCN soil sample results. Iowa State University, University Extension, 1999.
G. L. Tylka, Get the Latest Information on Performance of SCN-resistant Soybeans, 2013.
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, Submitted.
G. L. Tylka, Da Silva, M. Batista, and Pecinovsky, K. T., Effects of Seed Treatments and a Soil-applied Nematicide on Corn Yields and Nematode Population Densities, 2012.
G. L. Tylka and Flynn, P., Interpreting SCN soil sample results/; prepared by Gregory L. Tylka and Paula Flynn., IPM 61, 1999.
G. L. Tylka, Soybean cyst nematode management field guide, 2008.
G. L. Tylka, Managing Soybean Cyst Nematode for Maximum Soybean Productivity, 2008 Illinois Crop Protection Technology Conference, p. 7, Submitted.
G. L. Tylka, Management of Nematode Diseases: Options, in Encyclopedia of Plant and Crop Science, Taylor & Francis, 2004, pp. 684-688.
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 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, Gebhart, G. D., Marett, C. C., and Mullaney, M. P., Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode, 2011.
G. L. Tylka and Marett, C. C., Comparing Yields of Soybean Varieties with Different Sources of SCN Resistance in Strip Trials, 2009.
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. L. Tylka, Da Silva, M. Batista, R Saeugling, A., and Marlay, S., Effects of Nematode-Protectant Seed Treatments on Corn Yields and Nematode Population Densities, 2011.
G. L. Tylka, McCarville, M. T., Marett, C. C., Gebhart, G. D., Soh, D. H., Mullaney, M. P., and O'Neal, M. E., DIRECT COMPARISON OF SOYBEAN CYST NEMATODE REPRODUCTION ON RESISTANT SOYBEAN VARIETIES IN GREENHOUSE AND FIELD EXPERIMENTS, JOURNAL OF NEMATOLOGY, vol. 45, no. 4. SOC NEMATOLOGISTS PO BOX 311, MARCELINE, MO 64658 USA, pp. 322-323, 2013.
G. L. Tylka, Management of nematode diseases [recurso electrónico]: options., Submitted.
G. L. Tylka and Wisner, R. N., Soybean rust and the food processing industry, Food technology, vol. 59, no. 6, 2005.
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, Trial Results Show Dual Benefits of SCN Resistance, 2014.
G. L. Tylka, Be Wary of High SCN Numbers in 2014, 2014.
G. L. Tylka, Distribution of the Soybean Cyst Nematode in Iowa: 1995-1996 versus 2007, Submitted.
G. L. Tylka, Hundreds of SCN-resistant Soybean Varieties Available for 2014, 2014.
G. L. Tylka, SCN Females Already Seen on Soybean Roots, 2013.
G. L. Tylka, of Soybean Cyst Nematode Field Guide Available, 2012.
G. L. Tylka, Soybean Cyst Nematode Reproduction High in 2012, 2012.
G. L. Tylka, Fall Soil Sampling for SCN Can Pay Big Dividends in 2013, 2012.
G. L. Tylka, Symptoms of SCN Damage Apparent Early, Yield Loss Likely Great in 2012, 2012.
G. L. Tylka, Possible Breakdown of SCN Resistance Topic of New Webcast, 2012.
G. L. Tylka, New Information and Videos on Website, 2012.
G. L. Tylka, Now is the Time to Look for SCN Females on Soybean Roots, 2012.
G. L. Tylka, New Approach to Assessing Possible Nematode Damage to Corn, 2012.
G. L. Tylka, Stunted, Yellowing or Wilting Corn: Could Nematodes Be the Cause?, 2012.
G. L. Tylka, A 10-Year Summary of Testing for Nematodes that Feed on Corn in Iowa, 2011.
G. L. Tylka, There’s Still Time to Check Fields for SCN Before 2012 Crop, 2012.
G. L. Tylka, Variety Trial Results Show Differences in SCN Control Among Varieties, 2012.
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. L. Tylka, 2012 Season is Not a Good One to “Roll the Dice” with SCN, 2012.
G. L. Tylka, Spring Sampling Not Recommended for Nematodes on Corn—Except for Sandy Fields, 2012.
G. L. Tylka, Know Your Choices: Hundreds of SCN-resistant Soybean Varieties For Iowa, 2011.
G. L. Tylka, Fall Time to Sample for SCN—But Not for Nematodes That Feed on Corn, 2011.
G. L. Tylka, Comparing Nematode Management Products on Corn in Strip Trials, 2011.
G. L. Tylka, Gebhart, G. D., and Marett, C. C., Evaluation of soybean varieties resistant to soybean cyst nematode in Iowa, Iowa State University IPM Bulletin, vol. 52, 2002.
G. L. Tylka, The isolation, quantification, and possible integrated control of Cylindrocladium spp. from Mont Alto and Penn forest tree nursery soils, California University of Pennsylvania, 1985.