Clemson University

Disease and Insect Management for Organic Vegetable Production

This one-day course will focus on management of key disease and insect pests of cucurbits (squash, cucumbers, and melons), tomatoes and leafy greens. Participants will learn about techniques for disease and insect sampling and identification, how to diagnose damage and to determine whether damage warrants action, and about non-chemical approaches to management including cultural practices to prevent and avoid pests and diseases. Participants will also learn about organic certification guidelines related to pest management, and use of OMRI approved materials.


9:00 AM Insect and Disease Management in Cucurbit Crops (Drs. Tony Keinath and Rebecca Schmidt-Jeffris, Clemson University)

  • Identification of key diseases and insect pests
  • Damage and discussion on action thresholds
  • Non-chemical strategies (timing of planting, row/plant spacing, trap cropping, conservation bio-control and other effective cultural practices)
  • Additional resources

10:45 Break

11:00 Insect and Disease Management in Solanaceae Crops Topics as described above  (Tony Keinath & Rebecca Schmidt-Jeffris)

12:30 PM Lunch (provided on site)

1:15 Video on pest sampling

1:30 Insect and Disease Management in Leafy Greens - Topics as described above (Tony Keinath & Rebecca Schmidt-Jeffris)

3:00 Organic Certification Guidelines for Pest Management and use of OMRI approved pesticides (Stephen Nix, Clemson Organic Certification Program)

4:15 Adjourn

Continuing Education Credits

For professionals seeking Continuing Certification Hours this workshop qualifies for 2 hours.  A sign in sheet will be available at the event.  Please be prepared to provide your license number when signing in.

Workshop Instructors

Dr. Anthony Keinath, Professor of Plant Pathology, Clemson University Coastal Research and Education Center, Charleston, SC. 

Dr. Keinath serves as the vegetable pathologist for South Carolina. He has served as chair of the Publications Board for the American Phyopathological Society, and as Editor-in-Chief of Plant Disease, the leading international journal for applied plant pathology research.  His research focuses on management, ecology, and epidemiology of fungal and bacterial pathogens of cucurbits and cole crops and general integrated pest management for vegetables. His area of expertise is the fungus Stagonosporopsis citrulli, the cause of gummy stem blight and black rot on cucurbits.

Dr. Rebecca Schmidt-Jeffris, Assistant Professor of Entomology, Clemson University Coastal Research & Education Center, Charleston, SC. Dr. Schmidt-Jeffris serves as the vegetable and strawberry entomologist for South Carolina. She is an applied arthropod ecologist with an interest in whole-system IPM approaches for solving pest management problems. Her current research focuses on how cultural and biological control coupled with selective pesticide use can improve management outcomes.

Mr. Stephen Nix, Organic Program Coordinator, Clemson Organic Certification Program.

Stephen received a B.S. degree in Geology from Clemson University. Before returning to Clemson in his role as Organic Program Coordinator, Stephen worked as an environmental consultant and also served as the South Carolina Food Systems Coordinator for the Carolina Farm Stewardship Association. Stephen also owns a small, diversified farm outside of Traveler’s Rest, SC.

The Phillips Market Center is located at 3501 Charleston Hwy, West Columbia, SC.  Directions can be found here.

The cost for this workshop is $20 which includes lunch and materials.  Each participant will receive a hand lens for insect scouting to take home.  To register please visit:

Tuesday, August 15, 2017 at 9:00am to 4:00pm

Phillips Market Center 3501 Charleston Hwy, West Columbia, SC

Event Type



College of Agriculture, Forestry and Life Sciences, Cooperative Extension Service

Target Audience

All Audiences




Contact Name:

Kelly Ann Flynn

Contact Phone:

864 656-5057

Contact Email:


Recent Activity

Event Registration Required

This event requires registration.