The lengthier and heavier the mycotoxin exposure, the more toxic the feed.

The DON year and dairy feed

Dairy farmers have had to manage higher mycotoxin levels in feed after last harvest. Here’s how they did it

Dairy farmers faced challenges dealing with mould in corn in 2018, as crop farmers dealt with the widespread DON outbreak. Dairy animals can manage mould levels in small doses but […] Read more



After a disastrous vomitoxin outbreak, the Ontario Corn Committee is implementing a testing program that farmers have wanted for years. But will companies participate?

DON corn testing: A new era begins

After a disastrous vomitoxin outbreak, the Ontario Corn Committee is implementing a testing program that farmers have wanted for years. But will companies participate?

Ontario corn farmers have been relying on their own observations and those of their neighbours along with scant information from corn companies to make hybrid selections that lower their risk […] Read more

Ontario farmers haven’t had much information on corn susceptibility to DON.

Corn committee launches corn DON testing

The voluntary program will inoculate corn hybrids at two locations in the province

The Ontario corn committee is requesting seed companies enter their current and new hybrids in newly created inoculated trials for susceptibility to DON. The committee says the voluntary trials will […] Read more


Farmers have been challenged by an inability to market lower-quality corn after last year’s harvest.

Loan program gets extension, funding boost

Changes made to the Commodity Loan Program to help deal with DON-infected corn financial challenges

Changes to the Commodity Loan Program (CLP) have been made to help farmers dealing with extreme harvest issues across the province. Grain Farmers of Ontario (GFO) asked for an extension […] Read more





Corn has been discounted across much of Ontario because of high levels of DON. There are challenges in marketing especially high infection level corn.

How the new DON testing cost-share program works

Funds will share half of the cost of DON testing or equipment purchase so farmers can know what they have in their bins

With vomitoxin (DON) levels prevalent in this year’s corn crop, the Ontario Soil and Crop Improvement Association (OSCIA) says a new DON testing cost-sharing initiative will help producers strategically market […] Read more