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The overwhelming culprit is F. graminearum (G. zeae) which can be distinguished from similar fusaria by the bright orange/pink colouration of this fungus infection on the grain.
Cereals, Crops

The latest buzz on fusarium in cereal crops

Fusarium is destructive, and Alberta’s zero-tolerance policy is in trouble in durum areas

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Fusarium head blight (FHB), fusarium graminearum, or tombstone as it’s called in the U.S. has become one of the most destructive diseases of small grain cereals and corn in North America. Fusarium head blight first became a problem in Ontario where it produced toxins on grain corn. Just to confuse you, this disease on corn […] Read more
Canola growers face the reality that the most profitable field crop they grow is in grave danger.
Canola, Crops

Clubbed to debt: the rise of clubroot

Protect your best cash crop from the hazards of clubroot by taking these precautions


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I first ran into the clubroot disease of crucifers on the farm where I grew up in West Wales. Farmers did not know much about the disease other than it came from purchasing cabbage transplants and it was most destructive on sour soil, a term for acidic soil. Control was stated to involve heavy liming […] Read more
Looking for disaster yellows
Crops

Looking for disaster yellows

There has been few incidences this year, but aster yellows can cause high yield losses

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This year I have travelled extensively around Manitoba, Saskatchewan and Alberta and I have not seen a single canola plant with aster yellows (AY). A friend of mine said she found one plant only, in Saskatchewan in canola. Contrast this with 2012 when this phytoplasmic disease of canola, wheat, barley, flax, potatoes and probably all […] Read more
When we have years with lots of ergots, we have higher levels of wheat midge.
Cereals, Crops

Don’t blame ergot on the weather

Copper deficiency leads to the development of many diseases in cereal crops

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If you’re a pedigreed seed grower and you’ve discovered that one of your seed fields, either wheat or barley, is infested with ergot, you have a problem but it’s not what most, if not all of you think. Don’t blame it on a common diagnosis of cold, wet growing conditions. It’s more likely caused by […] Read more
Many years ago, farmers used to take caution when planting winter wheat and rye due to snow mould. Not so much a problem anymore.
Columns, Crops

Where have these funguys gone?

Herbicides and “new” crops may play a role in controlling disease

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Back in the 1970s and ’80s when I worked for Alberta Agriculture, take-all of wheat and barley and snow mould of winter wheat were hot topics on the Canadian prairies. Yield losses from these two diseases were considerable. Wet summers were bad for take-all, while deep snow winters often led to snow mould. I remember […] Read more

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