Members in the Retired Member Category

Thomas F. Armstrong, Ph.D.
Monsanto Company (Retired)
10664 Lakemont Dr.
Rolla, MO 65401
United States
Office Phone: 573.426.6795
Home Phone: 573.426.6795
Mobile Phone: 573.201.8077
E-mail Address:
Field: Crop Science

Tom O. Blythe, M.S.
S-L Agri-Development Co., LLC
P.O. Box 692/7168 Hwy. 4 West
Senatobia, MS 38668
United States
Office Phone: 662.562.5607
Fax: 662.562.5607
Home Phone: 662.562.5607
Mobile Phone: 662.288.1956
E-mail Address:
Field: Agronomy

Dan E. Bradshaw, B.S. CPAg, CPCC-I
Crop Aid
456 Western Acres Dr
El Campo, TX 77437
United States
Office Phone: 979.543.3416
Home Phone: 979.543.3416
Mobile Phone: 979.541.7560
E-mail Address:
Field: Agronomy/Crops
Crops: Rice, corn, soybeans, grain sorghum, wheat, turfgrass, cotton.
Services: Integrated crop management (ICM), problem investigation, expert witness.

Paul Groneberg, Master of Agriculture CPCC-I
Centrol Crop Consulting
14727 130th Street
Hoffman, MN 56339
United States
Home Phone: 320.986.2347
Mobile Phone: 320.760.7941
E-mail Address:
Field: Pest Management
Crops: Corn, soybeans, wheat, alfalfa, No-Till, Strip Till
Services: Crop management program including consulting in fertility, varietal selection, field monitoring, pest management, site specific services.

Don Harlan, Ph.D. BCE, CPCC-R
Mid-South Ag Research, Inc.
2383 Hinkley Road
Proctor, AR 72376
United States
Office Phone: 870.732.2981
Fax: 870.735.7752
Home Phone: 870.739.6339
Mobile Phone: 901.493.9660
E-mail Address:
Field: Entomology
Crops: Cotton, soybeans, rice, wheat, grain sorghum, vegetables.
Services: Contract research with herbicides, fungicides, insecticides, PGRs, and nematicides. Residue research conducted according to EPA GLP guidelines.

Robert Hoag, Ph.D.
inSight Crop Research LLC
25286 W. 105th Terr.
Olathe, KS 66061
United States
Office Phone: 913.490.6501
Mobile Phone: 913.490.6501
E-mail Address:
Field: Soil Science, Forestry, Business
Crops: All crops.
Services: GLP field residue study management, import tolerances, report writing, consultation for study design to meet global regulatory requirements. GLP and field study training for study directors and PFIs. Extensive experience within North and South America including tropical crops. inSight Crop Research is a comprehensive solution provider.

Donald L. Jameson, B.S. CPCC-I, CPAG
Agrimanagement, Inc.
P.O. Box 583
Yakima, WA 98907
United States
Office Phone: 509.453.4851
Fax: 509.452.6760
Home Phone: 509.965.1390
Mobile Phone: 509.945.0549
E-mail Address:
Field: Agronomy
Crops: Corn, wheat, mint, hops, tree fruit and vineyards, berry crops, potatoes, sweet corn, alfalfa, seed crops.
Services: Soil analysis and fertilizer recommendations, irrigation scheduling, plant analysis, nematode evaluations, pest management.

Stuart M. Mertz, Jr., Ph.D. RQAP-GLP
PEAK Quality Consulting, Inc.
2842 Vickers Dr. #206
Colorado Springs, CO 80918-1887
United States
Office Phone: 919.602.8568
Mobile Phone: 919.602.8568
E-mail Address:
Field: Botany, Plant Physiology, QA
Crops: All
Services: Contract Quality Assurance (EPA, OECD, FDA) services including GLP inspections, audits, SOPs, and GLP training of personnel; & Contract Research-provide various scientific services for agricultural research, development and regulatory affairs including biotechnology. Consulting services for PEAK performance from your employees or when you have a PEAK in your business and you need experienced professional help.

David Ricke
David Ricke Consulting Services
601 East Hendricks St
Greensburg, IN 47240
United States
Office Phone: 812.525.4596
Fax: 812.663.6604
Mobile Phone: 812.525.4596
E-mail Address:
Crops: Corn, Soybeans, Wheat, Alfalfa, Range Management
Services: Crop Consulting, Nutrient/Waste Management Plans, Crisis Management

Charles L. Southworth
489 Silica Springs Road
Gaffney, SC 29340
United States
Home Phone: 864.489.1586
E-mail Address:

Jerome L. Wiedmann, Ph.D.
Wiedmann Management & Consulting, LLC
12764 Huntoon Road
Painesville, OH 44077
United States
Office Phone: 440.254.4230
Mobile Phone: 440.413.3778
E-mail Address:
Field: Analytical Chemistry
Services: Field Regulatory Study Management