Kathleen Delate

Kathleen Delate

Department of Horticulture
106 Horticulture Hall
Iowa State University
Ames, IA 50011-1100

Phone: 515-294-7069
Fax: 515-294-0730
Email: kdelate@iastate.edu


Doctor of Philosophy, University of California-Berkeley, 1991
Master of Science, University of Florida, 1986
Bachelor of Science, University of Florida, 1977

Awards/Special Recognition

2013, Certificate for leadership in Sustainability, ISU Live Green Program
2013, Outstanding Achievement in Extension and Outreach Award, College of Agriculture and Life Sciences
2010, American Society of Agronomy (ASA) appointment as Section Chair, Agronomic Production Systems: 2010‐2011 
2009, ASA Board of Directors appointment representing Organic Management Systems division
2008, USDA-CSREES appointment to co-lead Multi-State Project on Organic Agriculture and Soil Quality
2008, Gubernatorial appointment as Board Member of the Iowa Agricultural Development Association (IADA), Des Moines, IA: 2008-2012
2008, Elected as Vice-Chair of the ASA Integrated Agricultural Systems Division (Division A-8): 2008–2009; Chair: 2009–2010
2006, Gubernatorial appointment as Board Member of Iowa Prison Industries (IPI) to provide recommendations on IPI organic farm operations, Des Moines, IA: 2006-2012
2006, Elected as Chair of the ASHS Organic Horticulture Working Group: 2006-2007
2005, Appointed as Panel Chair for the USDA-CSREES Integrated Organic Program, Washington, D.C. 
2002, Iowa State University Individual Achievement in Extension Award 
2000, Appointed to Steering Committee of Scientific Congress on Organic Agriculture Research (SCOAR), a national group of organic researchers and producers organized by the Organic Farming Research Foundation (OFRF): 2000 to present
1997, Gubernatorial appointment as Board Member of the Iowa Department of Agriculture and Land Stewardship (IDALS) Organic Advisory Committee, Des Moines, IA: 1997-present

Teaching/Advising Responsibilities

  • Horticulture 484/584 (Cross-listed with AGRON and SUSAG) –Organic Agriculture: Theory and Practice

Selected Publications

Delate, K. 2012. Organic vegetable research: Twenty years of progress. American Society for Horticultural Science Annual Conference, July 31-August 3, 2012, Miami, FL 47(9): S78: http://ashs.org/downloads/supplement/2012ASHS-AnnualConference.pdf

Delate, K., and C. Chase. Horticultural and economic performance of an organic no-till tomato system. American Society for Horticultural Science Annual Conference, Sept. 25-28, 2011, Waikoloa, HI. HortScience 46(9): S181: http://ashs.org/downloads/2011ASHS_Conference_abstracts.pdf

Delate, K. and C. Cambardella. 2011. Environmental Services Organic Agriculture Research and Extension: Integrated Organic Program Project Directors Workshop. American Society for Horticultural Science Annual Meetings, Sept. 25-28, 2011, Waikoloa, HI. HortScience 46(9): S71: http://ashs.org/downloads/2011ASHS_Conference_abstracts.pdf

Carr, P., C. Cambardella, C. Cogger, K. Delate, W. Evans, J. Reeve, and X. Zhao. 2011. A New Multi-State Research Coordinating Committee for Linking Food Quality to Soil Health Benefits Following Adoption of Organic Management Systems. American Society for Horticultural Science Annual Meetings, Sept. 25-28, 2011, Waikoloa, HI. HortScience 46(9): S336: http://ashs.org/downloads/2011ASHS_Conference_abstracts.pdf

Cwach, D., K. Delate, M. Duffy and C. Cambardella. 2011. Effects of Cover Cropping In Organic Systems Including Organic No-till. American Society of Agronomy Annual Meeting, San Antonio, TX, Oct. 16-19, 2011. ASA, Madison, WI. http://scisoc.confex.com/scisoc/2011am/webprogram/Paper67571.html

Graham, M.W., K. Delate, L. Burras, D. Brenner, R.E. Mazur, M.M. Tenywa and D. Nakimbugwe. 2011. Organic Grain Amaranth Production in Kamuli District, Uganda. American Society of Agronomy Annual Meeting, San Antonio, TX, Oct. 16-19, 2011, ASA, Madison, WI. http://scisoc.confex.com/scisoc/2011am/webprogram/Paper67634.html

Delate, K., D. Cwach, and C. Chase. 2011. Organic no–till system effects on organic soybean, corn and tomato production and economic performance in Iowa. Renewable Agriculture and Food Systems doi:10/1017/S1742170511000524.

Singerman, A., K. Delate, C. Chase, C. Greene, M. Livingston, S. Lence and C. Hart. 2011. Profitability of organic and conventional soybean production under ‘green payments’ in carbon offset programs. Renewable Agriculture and Food Systems doi:10/1017/S1742170511000408.

Carr, P.M., K. Delate, X. Zhao, C. Cambardella, P.L. Carr, and J. Heckman. 2011. Organic Farming: Impacts on Soil, Food, and Human Health, Taylor and Francis, New York.

Wiltshire, K., K. Delate, M. Wiedenhoeft, and J. Flora. 2010. Incorporating native plants into multifunctional prairie-pastures for organic cow-calf operations. Renewable Ag. & Food Systems doi:10.1017/S174217051000044X.

Wiltshire, K., K. Delate, J. Flora, and M. Wiedenhoeft. 2010. Sociocultural aspects of cow-calf persistence in a peri-urban county in Iowa. Renewable Ag. & Food Systems doi:10.1017/S1742170510000505.

Romero, F., K. Delate, D. Hannapel, P. Murphy, and L. Liu. Horticultural and biochemical variations due to seed source and production methods in three Echinacea species. Journal of Herbs, Spices & Medicinal Plants 16:167–192. DOI:10.1080/10496475.2010.511072.

Delate, K., J. DeWitt, A. McKern, D. Rosmann, D.L. Karlen and R. Turnbull. 2009. Bean leaf beetle (Coleoptera: Chrysomelidae) response to soybean variety and organic-compliant treatments in Iowa. Jour. Agri. Urban Entomol. 25:145-163.

Delate, K., and Chase, C. 2009. Compost application and red clover underseeding have mixed effect on organic flax production in Iowa. Online. Crop Management doi:10.1094/CM-2009-0615-01-RS.

DeJong, D., and K. Delate. 2009.  The use of a non-point source pollution self-assessment for greenhouse and nursery operators in California. Journal of Extension 47(1):1-12:1FEA8.

Maury, W., J. Price, M. Brindley, C.S. Oh, J. Neighbors, D. Wiemer, N. Wills, S. Carpenter, C. Hauck, P. Murphy, M.P. Widrlechner, K. Delate, G. Kumar, G.A. Kraus, L. Rizshsky and B. Nikolau. 2009. Identification of light-independent inhibition of human immunodeficiency virus-1 infection through bioguided fractionation of Hypericum perforatum. Virology Journal 6:101 (13 July 2009).

Delate, K., C. Cambardella, C. Chase, and R. Turnbull. 2008. Beneficial system outcomes in organic fields at the Long-Term Agroecological Research (LTAR) site, Greenfield, Iowa, USA. Organic E-prints: http://www.orgprints.org/12441/.

Chase, C., K. Delate, M. Liebman, and K. Leibold. 2008. Economic analysis of three Iowa rotations. PMR 1001. Iowa State University, Ames, IA.

Delate, K., J. Walker, R. Volz, J. Johnston, A. White, V. Bus, R. Turnbull, D. Rogers, L. Cole, N. How, S. Guernsey, and A. McKern. 2008. Organic apple production in two humid regions: Comparing progress in pest management strategies in Iowa and New Zealand. HortScience 43(1):12–21.

Delate, K., J. T.S. Walker, R. Volz, J. Johnston, A. White, V. Bus, R. Turnbull, D. Rogers, L. Cole, N. How, S. Guernsey, and A. McKern. 2008. Organic apple systems: Constraints and opportunities for producers in local and global markets. HortScience 43(1):6–11.

Romero, F., K. Delate, G.A. Kraus, A.K. Solco, P.A. Murphy, and D.J. Hannapel. 2008. Alkamide production from hairy root cultures of Echinacea. In Vitro Cell Develop Biol. In press.

Delate, K., C. Cambardella, and A. McKern. 2008. Effects of organic fertilization and cover crops on an organic pepper system. HortTechnology 18: 215–226.

Hammer, K.D.P., M.L. Hillwig, A.K.S. Solco, P.M. Dixon, K. Delate, P.A. Murphy, E.S. Wurtele, and D.F. Birt. 2007. Inhibition of prostaglandin E2 production by anti-inflammatory Hypericum perforatum extracts and constituents in RAW264.7 mouse macrophage cells. Journal of Agricultural and Food Chemistry 55 (18):7323–7331.

Karlen, D.L., C.A. Cambardella, C.T. Bull, C.A. Chase, L.R. Gibson, and K. Delate. 2007. Producer–researcher interactions in on-farm research: A case study in developing a certified organic research site. Agronomy Journal 99:779–790.

Delate, K. 2006. Incorporating organic and agroecological approaches into the University curricula:  The Iowa State University Graduate Program in Sustainable Agriculture. HortTechnology 16(3): 445–448.

Delate, K., C. Chase, M. Duffy, and R. Turnbull. 2006. Transitioning into organic grain production:  An economic perspective. Online. Crop Management doi:10.1094/CM-2006-1016-01-RS.

Delate, K., Turnbull, R., and DeWitt, J. 2006. Measuring and communicating the benefits of organic foods. Online. Crop Management doi:10.1094/CM-2006-0921-14-PS.

Ngouajio, M., K. Delate, E. Carey, A.N. Azarenko, J.J. Ferguson, and W.J.Sciarappa. 2006. Curriculum development for organic horticulture. HortTechnology 16(3):413–417.

Rogers, D.J., L.M. Cole, K.M. Delate, and J.T.S. Walker. 2006. Managing bronze beetle, Eucolaspis brunnea, in organic apple orchards. New Zealand Plant Protection 59:57-62.

Delate, K., J. DeWitt, A. McKern and R. Turnbull. 2005. Integrated approaches to organic pest management in the Midwestern U.S.A.: Case studies of three crops. Organic-Research.com – May, 2005  8N –15N.

Romero, F., K. Delate, and D. Hannapel.  2005.  Effect of seed source, light during germination, and cold-moist stratification on seed germination in three species of Echinacea. HortScience 40:1751-1754.

Vargas, R, J. Long, N. W. Miller, K. Delate, C. G. Jackson, G. K. Uchida, R. C. Bautista, and E.J. Harris. 2004. Releases of Psyttalia fletcheri (Hymenoptera: Braconidae) and sterile flies to suppress melon fly (Diptera: Tephritidae) in Hawaii. Jour. Econ. Entomol. 97(5):1531-1539.

Davis, D., K. Delate, C. Brummer and C. Mize. 2005. Effect of forage species and tree type on tree establishment and nutritive value of hay crops in an alley-cropped system. Agroforestry Systems 65:43–52.

Delate, K. and C. Cambardella. 2004. Agroecosystem performance during transition to certified organic grain production. Agronomy Journal 96: 1288–1298.

Delate, K. and J. DeWitt. 2004. Building a farmer-centered land grant university organic agriculture program – A Midwestern partnership. Renewable Agriculture and Food Systems (Formerly The American Journal of Alternative Agriculture) 19(1): 1–12.

Delate, K. and H. Friedrich. 2004.  Organic apple and grape performance in the Midwestern U.S. Acta Horticulturae 638:309-320.

Delate, K., M. Duffy and C. Chase. 2003. An economic comparison of organic and conventional grain crops in a long-term agroecological research (LTAR) site in Iowa. American Journal of Alternative Agriculture 18(1): 1-11.

Delate, K. H. Friedrich and V. Lawson. 2003. Organic pepper production systems using compost and cover crops. Biol. Ag. and Horticulture 21(1):131–150.

Duppong, L.M., K. Delate, M. Liebman, R. Horton, F. Romero, G. Kraus, J. Petrich and L. Sanders. 2003.  The effect of natural mulches on crop performance, weed suppression and biochemical constituents of catnip (Nepeta cataria L.) and St. John's wort (Hypericum perforatum L.) Crop Science 44(3): 44:861-869.

Friedrich, H., K. Delate, P. Domoto, and G. Nonnecke. 2003. Effect of organic pest management techniques on apple productivity and food quality. Biol. Ag. and Horticulture 21 (1): 1–14.

Delate, K. 2002. Using an agroecological approach to farming systems research. HortTechnology 12(3): 345-354.

Delate, K., C. Cambardella, and D. Karlen. 2002. Transition strategies for post-CRP certified organic grain production. Published 28 August 2002. Crop Management  www.plantmanagementnetwork.org/pub/cm/research/postcrp/

Recent Grant Awards

USDA-NIFA-Organic Transitions Program: “Effect of Cover Crops, Soil Amendments and Reduced Tillage on Carbon Sequestration and Soil Health in a Long-Term Organic Vegetable System from Transition to Certified Organic Status” (with Univ. of Florida), 2010-2013: $691,969

CERES Foundation: “Effect of Cover Crops and Crop Rotations on Organic Vegetable Production” (with M. Al-Kaisi, Agronomy), 2010-2012, $179,484

USDA, Cooperative State Research, Education & Extension Service (CSREES), Organic Research and Extension Initiative & Water Quality Programs, “Enhancing Farmland Water Quality and Availability through Soil-Building Crop Rotations and Organic Practices”, 2009-2012: $599,142

USDA-NRI-Integrated Organic Program: “Developing Carbon-Positive Organic Systems through Reduced Tillage and Cover Crop-Intensive Crop Rotation Schemes”: $855,629: 2008-2012

USDA-SARE: “Facilitating Change: Reducing the Risks of Transitioning to Organic through a Comprehensive Farmer- and Extension-Based Training Program” (with Craig Chase, Leopold Center): 2008-2011: $144,590

USDA-SARE: “Cover Crops for Organic Grain Systems” (with North Dakota State and University of Wisconsin): 2010-2012: ISU share: $30,000

Leopold Center for Sustainable Agriculture (ISU)-Organic Agriculture/Long-Term Agroecological Research Initiative: 2010-2013: $150,000

Recent Invited Talks

“Organic Vegetable Research: Twenty Years of Progress” - Invited Talk for the Symposium: “A Decade of Progress in Organic Agriculture Science, Teaching and Extension.” American Society for Horticultural Science Annual Conference, Miami, FL, August 3, 2012

“Organic Agriculture Environmental Services” – First All-Canada Organic Conference, Winnipeg, Canada, Feb. 21, 2012

“Integration of Crops and Livestock in Organic Systems” – Advanced Organic and Sustainable Crop Production class (HOS 4283), University of Florida, Dept. of Horticulture, Gainesville, FL, March 12, 2012

“No-Till and Cover Crops for Organic Vegetable Production” - Great Plains Vegetable Conference, St. Joseph, MO, Jan. 7, 2011

“Integrated Approaches to Pest Management for Organic Vegetables and Fruits” - Nebraska Sustainable Agriculture Society Annual Conference, Columbus, NE, Feb. 19, 2011

“Organic Research in the Midwest, Organic Research Roundtable” - North Central Experiment Stations and USDA-ARS, La Crosse, WI, Feb. 24, 2011

“Soil Quality in Organic Systems, Upper Midwest Organic Farming Conference” - La Crosse, WI, Feb. 26, 2011

“The Long-Term Agroecological Research (LTAR) Experiment” - USDA-ERS National Organic Agriculture Conference, Washington, D.C., March 16, 2011

“Integrated Pest Management Approaches in Organic Agriculture” - Iowa State University BIGMAP (Biosafety Institute for Genetically Modified Agricultural Products) Annual Conference, Ames, IA, April 20, 2011

“Integration of Crops and Livestock in Organic Systems” - Dept. of Animal Science, University of Minnesota, St. Paul, MN, July 6, 2011

“Organic No-Till Vegetable Production” - University of Minnesota Southwest Research Station Field Day, Lamberton, MN, July 7, 2011

“Organic No-Till Production” - The Rodale Institute Annual Field Day, Kutztown, PA, July 22, 2011

“Organic Agriculture Research and Regulations” - USDA-NRCS Training, Sabetha, Kansas, Sept. 19, 2011

“Environmental Services Organic Agriculture Research and Extension” - Integrated Organic Program Project Directors Workshop, American Society for Horticultural Science Annual Meetings, Waikoloa, HI, Sept. 26, 2011