2014 Grain Corn Ear Mould and Vomitoxin Survey

Greg Stewart, OMAFRA Corn Specialist Albert Tenuta, OMAFRA Field Crop Pathologist The OMAFRA Field Crops team has completed the survey of the 2014 Ontario corn crop to determine ear mould incidence and the occurrence of mycotoxins in the grain. These mycotoxins, particularly vomitoxin (DON) produced primarily by Gibberella/Fusarium ear moulds, are grading factors and can […]

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My Soybeans are Wilting

In Ontario there are many root/stem diseases which cause wilting symptoms in soybeans.  With the hot, dry conditions this year over much of the province some of these diseases such as stem canker, Fusarium wilt, charcoal rot have taken advantaged of the additional stress. Fusarium wilt or blight of soybeans can affect soybeans at any […]

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Fungicide Efficacy for Control of Corn Diseases in Ontario (Corn Disease Working Group)

The hot, dry weather conditions to date have not been very conducive to foliar leaf diseases across most of the province.  In most cases, besides high relative humidity, prolonged wet conditions on the leaves are necessary for infection but only under favourable temperatures (16-30oC).  What has started to show recently in the southwest are the […]

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Fungicides for Managing Wheat Foliar Diseases and Fuarium Head Blight

  There are many different diseases which are caused by various fungal pathogens that affect cereals in Ontario. The foliar diseases (powdery mildew, leaf rust, Septoria leaf spot, Septoria (Stagonospora) glume blotch and tan spot) and Fuarium Head Blight (FHB) can cause significant yield losses if not managed correctly.  Although these diseases occur in all […]

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