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Member Symposium

Crop Mycotoxins and Their Association with Insects: Impact on Food and Feed Safety and Insect Control Decisions

7: Ear feeding corn pests and mycotoxins in the Great Lakes region

On-Demand

Presenting Author(s)

Jocelyn L. Smith

University of Guelph
Ridgetown, Ontario, CAN

Co-Author(s)

Yasmine Farhan

University of Guelph
Ridgetown, Ontario, CAN
VL

Victor Limay-Rios, PhD

University of Guelph Ridgetown Campus
Guelph, Ontario, Canada
AS

Arthur Schaafsma, PhD

University of Guelph Ridgetown Campus
Guelph, Ontario, Canada

In Ontario and the surrounding Great Lakes states, Gibberella Ear Rot is one of the most economically important corn diseases. This disease is caused by the fungal pathogen Fusarium graimearum which produces the mycotoxin deoxynivalenol (DON) contaminating grain corn used for livestock feed, human consumption, and ethanol. Western bean cutworm (WBC), Striacosta albicosta (Lepidoptera: Noctuidae), an ear feeding corn pest has become the most significant insect pest of corn in most Canadian corn growing regions since it’s range expandion from the US Great Plains in the early 2000s. WBC has proven to be a challenging pest to manage, and only one Bt protein (Vip3A) is effective in controlling WBC. Reseach conducted in Ontario to understand the relationship and management of WBC and DON will be reviewed and current management recommendations will be discussed.