The USDA National Institute of Food and Agriculture provides an important link between research-based agricultural information and those individuals directly involved with the production and marketing of agricultural products in the U.S. The state Extension corn specialists listed in this document, usually located at land-grant colleges and universities , are responsible for educational programming relative to corn production and management issues within their respective states. Many of these individuals also conduct applied field research on important corn issues in their states.
NOTE: If you have questions about sweetcorn production, please contact one of the sweet corny experts.
Please let me know of corrections or
additions to this list.
Click on a state on the map image or browse through the list of states that follows.

Alabama
- Dr. Brenda Ortiz
- College of Agriculture
Department of Agronomy & Soils
Auburn University, Alabama 36849
Phone: 334-844-5534
FAX:
Email: bortiz@auburn.edu
Web: Alabama Crops
Arkansas
- Dr. Jason Kelley
- Wheat & Feed Grains
University of Arkansas Cooperative Extension Service
2301 S. University Ave.
P.O. Box 391
Little Rock, AR 72203
Phone: 501-671-2164
FAX: 501-671-2297
Email: jkelley@uaex.edu
Web: Corn Information at Univ Arkansas
Colorado
- Dr. Jerry J. Johnson
- Department
of Soil and Crop Sciences
Colorado State University
Plant Sciences Bldg., Room C-07
Fort Collins, CO 80523
Ph. 970 491 1454
FAX: 970-491-2758
Email: jerry.johnson@colostate.edu
- Dr. Reagan Waskom
-
Department of Soil and Crop Sciences
Engineering E102
Colorado State University
Fort Collins, CO 80523-2033
Phone: 970 491-6308
FAX: 970 491 1636
Email: reagan.waskom@colostate.edu
Web: Colorado Water Institute
Delaware
- Dr. Richard Taylor
- Department of Plant & Soil Science
University of Delaware
Newark, DE 19716
Ph. 302 831 1383
FAX:
Email: rtaylor@udel.edu
Florida
- Dr. David Wright
- North Florida
Research and Education Center
University of Florida
155 Research Road
Quincy, Florida 32351
Ph. 850 875 7119
FAX: 850 875 7188
Email: wright@ufl.edu
Georgia
- Dr. R. Dewey Lee
- Department of Crop and Soil Science
University of Georgia
P.O. Box 748
Rural Development Center
Tifton, GA 31793
Tel: 229-386-3432
FAX: 229-386-7308
Email: deweylee@uga.edu
Web: Georgia Grains
Illinois
- Dr. Emerson Nafziger
-
Department of Crop Sciences
1102 S. Goodwin Ave.
University of Illinois
Urbana, IL 61801
Phone: 217 333 4424
FAX: 217 333 5299
Email: ednaf@uiuc.edu
Indiana
- Dr. R.L. (Bob) Nielsen
- Department of Agronomy
915 W. State St.
Purdue University
W. Lafayette, IN 47907-2054
Phone: 765 494 4802
FAX: 765 496 2926
Email: rnielsen@purdue.edu
Web: Kingcorn.org
Iowa
- Dr. Roger Elmore
-
Department of Agronomy
2104 Agronomy Hall
Iowa State University
Ames, IA 50011
Phone: 515 294 6655
FAX: 515 294 9985
Email: relmore@iastate.edu
Web: Iowa State Univ. Corn Production
Kansas
- Dr. Kraig Roozeboom
- Department of
Agronomy
Throckmorton Hall
Kansas State University
Manhattan, KS 66506
Phone: (785) 532-5776
FAX: (785) 532-6315
Email: kraig@ksu.edu
Kentucky
- Dr. Chad Lee
- Department of Plant & Soil Sciences
N-106 ASC-North
College of Agriculture
University of Kentucky
Lexington, KY 40546-0091
Tel: (859) 257-3203
FAX (859) 323-2185
Email: cdlee2@uky.edu
Web: Grain Crops Extension
- Dr. Jim Herbek
- University of Kentucky
Research and Education Center
P.O. Box 469
Princeton, KY 42445
Tel: 502 365 7541
FAX: 502 365 2667
Email: jherbek@uky.edu
Louisiana
- Dr. Ronnie Levy
- Dean Lee Research Station
8105 Tom Bowman Drive
Louisiana State University
Alexandria, LA 71302
Ph. (337) 788-8821
FAX:
Email: rlevy@agcenter.lsu.edu
Web: Corn Information
Maryland
- Dr. Robert Kratochvil
- Department of Plant Science and Landscape Architecture
College of Agriculture and Natural Resources
H.J. Patterson Hall
University of Maryland
College Park, MD 20742
Tel: 301 405 6241
FAX: 301 314 9041
Email: rkratoch@umd.edu
Web: Maryland Cropping Systems
Michigan
- Dr. Kurt Thelen
- Department of Crop & Soil Sciences
276 Plant and Soil Sciences Building
Michigan State University
East Lansing, MI 48854-1325
Tel: 517 353 1939
FAX: 517 353 5174
Email: thelenk3@msu.edu
Web: Field Crops Web Site
Minnesota
- Dr. Jeff Coulter
- Department of Agronomy
& Plant Genetics
1991 Buford Circle
411 Borlaug Hall
University of Minnesota
St. Paul, MN 55108
Phone: 612 625 1796
FAX: 612 624 3288
Email: coult077@umn.edu
Web: Corn Production
Mississippi
- Dr. Erick J. Larson
- Plant and Soil Sciences Department
Mississippi State University
Box 9555
Mississippi State, MS 39762-9555
Ph: 662 325 2311
Fax: 662 325 8742
Email: elarson@pss.msstate.edu
Web: Mississippi Corn Information
Missouri
- Dr. Brent Myers
- Division of Plant Sciences
214G Waters Hall
University of Missouri
Columbia, MO 62511
Phone: 573 882 4257
FAX: 573 884 1467
Email: myersdb@missouri.edu
Web: Agronomy Extension - Corn
Nebraska
- Dr. Greg Kruger
- Department of Agronomy and Horticulture
University of Nebraska-Lincoln
West Central Research and Extension Center
402 West State Farm Road
North Platte, NE 69101
Phone: 308 696-6715
FAX: 308 696-6780
Email: gkruger2@unl.edu
New Jersey
- Dr. Zane Helsel
- Rutgers University
59 Dudley Road
186 Foran Hall, Cook Campus
New Brunswick, NJ 08901-8520
Ph. 732-932-9711 x153
FAX: 732-932-4293
Email: helsel@AESOP.Rutgers.edu
New York
- Dr. Bill Cox
- Department of Crop & Soil Sciences
141 Emerson Hall
Cornell University
Ithaca, NY 14853<
Ph. 607 255 1758
FAX: 607 255 6143
Email: wjc3@cornell.edu
North Carolina
- Dr. Ronnie W. Heiniger
-
Department of Crop Science
North Carolina State University
Vernon James Research & Extension Center
207 Research Station Road
Plymouth, NC 27962-9526
Phone: 252 793 4428
FAX: 252 793 5142
Email: ron_heiniger@ncsu.edu
North Dakota
- Dr. Joel Ransom
- Department
of Plant Sciences
North Dakota State University
P.O. Box 5051
Fargo, ND 58105-5051
Phone: 701 231 7405
FAX: 701 231 8474
Email: joel.ransom@ndsu.edu
Ohio
- Dr. Peter Thomison
- Department of Horticulture and Crop Science
2021 Coffey Road
The Ohio State University
Columbus, OH 43210
Phone: 614 292 2373
FAX: 614 292 7162
Email: thomison.1@osu.edu
Web: Specialty Corns for Value-Added Grain Production
Pennsylvania
- Dr. Greg Roth
- Department of Crop & Soil Sciences
407 Agricultural Sciences and Industries Building
The Pennsylvania State University
University Park, PA 16802-3504
Phone: 814 863 1018
FAX: 814 863 7043
Email: gwr@psu.edu
Web: Corn & Soybean Management
South Carolina
- H. David Gunter
- Department of
Entomology, Soils, & Plant Sciences
Clemson University
Edisto Research & Education Center
64 Research Rd.
Blackville, SC 29817
Ph. 803-284-3343 ext. 274
Mobile 843-616-2133
Email dgunter@clemson.edu
Web: Corn Information
South Dakota
- Dr. Robert Hall
- Department of Plant Sciences
AGH 226, Box 2207A
South Dakota State University
Brookings, SD 57007
Tel: 605 688 4760
FAX:
Email: Robert_Hall@sdstate.edu
Web: Corn Information
Tennessee
- Dr. Angela Thompson McClure
- Department of Plant Sciences
University of Tennessee Agricultural Extension Service
605 Airways Blvd.
Jackson, TN 38301
Ph. 731-425-4706
FAX: 731-425-4720
Email: athomp15@utk.edu
Web: UT Crops Corn Resources
Texas
- Dr. Ronnie Schnell
- Department of Soil & Crop Sciences
Texas A&M University
531C Heep Center
College Station, TX
Tel: 979-845-2935
FAX:
Email: ronnie.schnell@ag.tamu.edu
Vermont
- Dr. Sidney C. Bosworth
- Plant & Soil Science Department
Hills Agricultural Building
University of Vermont
Burlington, VT 05405
Phone: (802) 656-0478
FAX: ###
Email: Sid.Bosworth@uvm.edu
Web: Vermont Crops and Soils
- Dr. Heather Darby
- Plant & Soil Science Department
Hills Agricultural Building
University of Vermont
Burlington, VT 05405
Phone: (802) 524-6501
FAX: ###
Email: Heather.Darby@uvm.edu
Virginia
- Dr. Wade Thomason
- Department of Crop and Soil
Environmental Sciences
Virginia Tech
Blacksburg, VA 24061-0403
Phone: 540 231 2988
FAX: 540 231 3075
Email: wthomaso@vt.edu
Web: Corn & Small Grain Management
Wisconsin
- Dr. Joe Lauer
- Department of Agronomy
1575 Linden Dr.
University of Wisconsin
Madison, WI 53706-1597
Phone: 608-263-7438
FAX: 608 262 5217
Email: jglauer@wisc.edu
Web: Wisconsin Corn Agronomy