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Weed Control Updates for 2021

CEU Credits: 0.5 |
Integrated Pest Management
*CHS Agronomy has submitted this course and is awaiting approval from the Agronomy Society of America. Once approval is received, your transcript will automatically update and if your CCA number is included on your profile your credits will automatically be reported in 4-6 weeks.x
Published 03/22/2021
| Course Duration: 36:00

New dicamba regulations and postemergence herbicide options arrive this spring. Take this course to understand how these new regulations will affect your operation and how to recommend pre- and postemergence herbicide technologies to growers with tough-to-control weeds.

After successful completion of this course, you’ll be able to share with your customers:

  • New federal registration parameters for dicamba
  • The difference between volatility and drift
  • How volatility reducing agents (VRAs) and drift reduction agents (DRAs) work
  • The characteristics of a buffering agent
  • Why Palmer amaranth and waterhemp are so hard to control


Sara Allen

Sara Allen

CHS Agronomy, Technical Specialist

Sara Allen received her BS in Agribusiness Economics in 1983 and her MS Plant and Soil Science SIU-C in 1985. Sara began her career as field researcher with American Cyanamid covering southern Illinois where she worked for 13 years. She then worked as a testing manager for Soygenetics in plant breeding for two years before starting as a warehouse manager/agronomist for United Suppliers, a distributor. In 2009, she went back into industry as a weed management technical rep with Monsanto and ended her time there working as a dicamba training lead and Crop Protection Engagement Manager from 2015 – 2018.  Then, Sara went back to the distribution side of the business and currently is a Technical Specialist with CHS, Inc covering southern Illinois, Kentucky and Missouri.   

Sara is a member of the Weed Science Society of America and also active on the Rend Lake College Ag Advisory Council as well as a director on the Jefferson County Farm Bureau board. She has also been the past President of the Southern Illinois Fertilizer and Pesticide advisory board.

John Pawlak

John Pawlak

Valent, Sr. Product Development Manager

Dr. John Pawlak received his B.S. and M.S. in soil science from Michigan State University. He completed his Ph.D. in Weed Science at Oklahoma State University and has been a part of the Valent U.S.A. weed science efforts for 32 years. In his current position as Senior Product Development Manager, he is responsible for developing new herbicides and PDM management.