OMAFRA Report: Ministry, farmer organizations complete annual Ontario corn ear mould and DON mycotoxin survey

A weekly report prepared by the staff of the Ministry of Agriculture, Food and Rural Affairs (OMAFRA).  If you require further information, regarding this report, call the Elora Resource Centre at 519-846-0941.  Office hours: 8:30am to 4:30pm.For technical information call the Agricultural Information Contact Centre at 1-877-424-1300 or visit the OMAFRA website:

January 1, 2021


OMAFRA field crop specialists in collaboration with Grain Farmers of Ontario (GFO) and members of the Ontario Agri-Business Association (OABA) have completed the annual Ontario corn ear mould and DON mycotoxin survey. Corn ear moulds such as Gibberella and their corresponding mycotoxins occur every year in Ontario. These mycotoxins, particularly deoxynivalenol (DON, also referred to as vomitoxin) are produced primarily by Gibberella/Fusarium ear moulds and can be disruptive when fed to livestock, especially hogs. The 2020 survey found 89% of samples tested low (<2.00 parts per million (ppm)) for DON which is in line with long term survey averages.

For entire article please visit website –


2019/2020 Winter Conditions

Much of the province had a mild winter, with average amounts of precipitation. Areas of Chatham-Kent, Lambton, Huron, Grey, Bruce, Timiskaming, Cochrane, Rainy River, and Kenora received below-average winter precipitation.

Forages broke dormancy early in much of the province, with green-up starting in mid-March in the southwest. Overall, reports of winterkill were normal or below-normal levels, except in Prescott & Russell, where high amounts of alfalfa winterkill occurred. Alfalfa snout beetle could be a contributing factor in these winterkill reports as it is known to be present in these two counties, as well as in fields in neighbouring counties in eastern Ontario. Alfalfa snout beetle larvae girdle the taproot, often completely severing the root. Signs of injury are apparent in late fall but can go unnoticed and be reported as winterkill the next spring

For entire article visit


Canola acreage in Ontario was similar to last year, with 29,019 acres insured in 2020. Spring canola acres have declined in most regions, including a drop in Temiskaming District from about 11,300 acres in 2019 to about 9,300 acres in 2020. Nipissing added 700 acres compared to last year, for a total of nearly 2,000 acres. Combined acreage in Cochrane District and Northwestern Ontario has remained around 4,800 acres insured. Acreage in other areas is trending downwards, especially in central and eastern Ontario. Interest in winter canola continues to expand across all parts of the province south of Lake Muskoka. It is estimated that there were between 1,500 to 2,000 acres of winter canola harvested in 2020.

For entire article, visit website –