Mark Boyles
Canola Project Specialist
Department of Plant and Soil Sciences
278 Agricultural Hall
Phone: 405-880-0539
Fax: 405-744-5269
email: mark.boyles@okstate.edu

Roger Gribble
Area Extension Agent
316 E. Oxford
Enid, Oklahoma 73701
Phone: 580-237-7677
email: roger.gribble@okstate.edu

Weed Science Specialist
Department of Plant and Soil Sciences
279 Agricultural Hall
Phone: 405-744-9588
Fax: 405-744-5269
email:

County Extension Offices

Custer County Extension Office
Ron Wright - Extension Educator
Box 170, Courthouse, Arapaho, OK 73620-0170, (580) 323-2291

Kay County Extension Office
Larry Klump
Box 430, Courthouse, Newkirk, OK 74647-0430, (580) 362-3194

Kingfisher County Extension Office
Keith Boevers – Extension Educator
101 S. Main, Rm 13, Kingfisher, OK 73750-3241, (405) 375-3822

Grady County Extension Office
Michael Pettjohn
828 Choctaw, Chickasha, OK 73018-2310, (405) 224-2216/5371

Alfalfa County Extension Office
Thomas Puffinbarger - Extension Educator
300 S. Grand Ave., Courthouse, Cherokee, OK 73728-2599, (580)596-3131

Woods County Extension Office
Jim Rhodes – Extension Educator
407 Government St., Rm 11, Alva OK 73717-2246, (580)327-2786

Canadian County Extension Office
Brad Tipton - Extension Educator
Box 519, Fairgrounds, El Reno, OK 73036-0519, (405) 262-0155

Grant County Extension Office
Scott Price - Extension Educator
112 E. Guthrie, 301 Courthouse, Medford, OK 73759-1246, (580) 395-2134

Harper County Extension Office
Stephen Beck - Extension Educator
Box 180, 1001 N. Hoy, Buffalo, OK 73834-0180, (580) 735-2252

Dewey County Extension Office
Michael Weber - Extension Educator
P.O. Box 188, Courthouse, Taloga, OK 73667-0188, (580) 328-5351

Garfield County Extension Office
Bart Cardwell
316 E. Oxford, Enid, OK 73701-1335, (580) 237-1228

Logan County Extension Office
David Williams - Extension Educator
215 Fairgrounds Rd., Suite B, Guthrie, OK 73044-4757, (405) 282-3331

Woodward County Extension Office
Terry Nelson - Extension Educator
108 Temple Houston Dr., Woodward, OK 73801-6119, (580) 254-3392

Blaine County Extension Office
Alvin Woodruff - Extension Educator
212 N. Weigle Ave., Suite 101, Courthouse, Watonga, OK 73772-3897 (580) 623-5195