Grain Marketing

Vomitoxin in 2018 corn harvest

What it is

  • In 2016 Ontario struggled with the first wide spread incidence of Deoxynivalenol (DON), commonly referred to as Vomitoxin, and it’s back again this year.
  • Incidence of these mycotoxins creates varying degrees of toxicity for livestock.
  • Based on surveys by OMAFRA, and field walks by agronomists from many different Ag retail outlets, including Thompsons, it has become apparent the 2018 corn crop has vomitoxin similar to, and possibly worse than 2016.
  • DON’T mix high VOM corn (greater than 8 ppm) with lower VOM corn (less than 8 ppm) because it will make ALL the corn unsaleable.

What it means

  • The grain elevator industry is making decisions around this problem and has decided to put measures in place. We want to work with our producers to mitigate losses and treat everyone fairly. The only way to do that is to assess loads as they are delivered to our elevators using the vomitoxin testing methods that are used by the grain industry. Each test will take approx. 5-10 minutes for the results.

Learn more

  • Get updated news and information from Agricorp.

These discounts and protocols are subject to change as we get further along with harvest and learn more about vomitoxin levels.

Testing protocol and discounts:

North branch locations:
(Granton, Hensall, Mitchell, Pontypool, Port Albert and Rannoch)

Thompsons will be testing every load and discounts will apply.

South branch locations:
(Blacks Lane, Blenheim, Coatsworth, Kent Bridge, Norwich and Pain Court)

Thompsons will be testing every load and discounts will apply.

If you have any questions, please contact your local Thompsons Ag Consultant.

To our valued customers,

Going into this harvest, I was looking forward to good (maybe even great) yields, clear weather, and happy growers. As October rolled around, with the hot, wet, weather, we soon began to worry about vomitoxin in corn.  Unfortunately, our fears, in some areas, have come to fruition.

There are concerning issues with vomitoxin, (DON) in corn. The levels we are seeing, are all over the map. Some very high and some very low depending on geography, hybrids, etc. The elevator network, inclusive of the end users, are moving rapidly to testing every load.

Thompsons started with testing the first two loads, and if they were under 3 ppm, we would do random test thereafter. With the volatility in each field, we will likely go to testing every load, specifically in areas that appear to have a higher probability of having Vomitoxin.

Levels of Vomitoxin over 8 ppm are highly unmarketable and subject to rejection. Growers with levels over 8 ppm may be able to make a claim with Agricorp. They have released a fact sheet that you can read and/or download here. We encourage you to talk to Agricorp to determine viability. Agricorp can be reached at 1 (888) 247-4999.

As you are harvesting corn, if you find a field that is higher in DON, we would suggest you go to another field and try that one, at least for now. We as an industry, are looking for ways to market this corn. Unfortunately, it will take time and “space” to figure some of this out, which most people do not have. Because there is not enough space to segregate the different levels of vomitoxin, all corn then becomes toxic, hence creating issues with the end user.

Please talk to your account rep, or originator as you work through these issues. Be assured, we are working toward a solution that may not be perfect for either party, but gives us, and you, an outlet for this commodity.

Because of the changing situation, our discounts and rejection levels are subject to change. Please keep in contact with your Thompsons account rep, as well as looking at the web site for updates.

I know there will be tough conversations. We will do our very best to help you understand what is happening in the industry and what that means to you, as a grower.


Dawn Betancourt
President, Thompsons Limited

The information in this Agricorp document applies to Production Insurance customers who are affected by Deoxynivalenol (DON), also known as vomitoxin.

pdf preview


DTN Logo

Market data and news provided by DTN.
Cash bids are subject to change without notice.
Quotes delayed 10-30 minutes.

Postal disruption

To help avoid challenges posed by the rotating postal strike, you can pay Thompsons using online payments with your bank or credit union. Simply add us as a payee, just like you would with your utility company.

Grain Marketing News

Meet our experienced Traders

The Grain Marketing department at Thompsons was established in 1970.

Although agriculture has changed dramatically since then, the purpose of the “trading room” has changed very little.
Its purpose is to search both the domestic and export market to find the best value for Ontario produced grain.

Darcy Oliphant

Darcy Oliphant

General Manager of Grain, Oilseeds, and Food Products

Darcy joined Thompsons in 1995. Darcy has over 20 years experience in all aspects of trading for Thompsons. Darcy has traded and managed both the grain and soybeans for Thompsons. Darcy is now managing the Bean department for Thompsons which includes crush soybeans, IP soybeans, edibles and organics.

Rich Daly

Rich Daly

Corn Trader

Rich joined the Thompsons team in August 2013 coming from Lansing Trade Group with the Lansing and Andersons purchase of Thompsons. Rich has 23 years experience in the agriculture industry and 17 years experience specifically in the grain industry in addition to helping producers with risk management for grain.

Ann Hyndman

Ann Hyndman

Wheat Trader

Anne joined Thompsons in 1998 as Logistics Coordinator and within 2 years moved into the role of trading wheat. In 2011 she joined Lansing Trade Group on the wheat desk until 2013 when the Lansing office joined the Thompsons team. Anne has over 16 years of experience in the grain industry and continues to focus on wheat.

Heather Moffatt

Heather Moffatt

Grain Originations Manager

Heather has been involved in the commodity markets for over 20 years in various capacities, including trading, merchandising and grain origination with a focus that has, and continues to be, risk management. Heather hopes to use her background in hedging risk – cash, futures and options markets, to enable Thompsons customers to successfully manage their grain marketing exposure.

Jeff Stonehouse

Jeff Stonehouse

Soybean Division Manager

Jeff joined the Thompsons team in July 2005 covering the crush soybean deck. In the 9½ years at Thompsons, Jeff’s role has grown to include Thompsons’ bulk Non-GMO program as well as food grade beans in parts of the Southeast Asia market.

Neil Moloney

Neil Moloney

Grain Origination

Neil has been involved in grain trading and logistics for over four years. Before that he had 16 years experience in animal feed production and distribution.

Scott Cottendon

Scott Cottendon

Food Products Manager, Edible Beans and Organics

Scott joined the Food Products team in 2012. Scott spent 10 years in the trading room, trading crush soys and corn, and started with Thompsons in 1995 in retail working at both the Hensall and Norwich branches. In May 2016, Scott was promoted to Food Products Manager where he will be responsible for all edible and IP bean sales, including IP soybean sales to Japan.

Kim Mayer

Kim Mayer

Food Products Sales & Marketing

Kim has over 10 years of experience with Thompsons in various positions learning different aspects of Food Products and soybean sales for North America, Europe, Middle East, Malaysia and Singapore. Kim also handles white bean culls, splits, and organics.

Jennifer Kilbourne

Jennifer Kilbourne

Grain Originations Representative

Jennifer brings 25 years of experience in Ontario agribusiness to the Thompsons team. Previous roles include grain merchandising and grain advisory services, agronomic services and facility management, with a focus on customer service. She enjoys working with producers to find grain marketing solutions for their operation.