Latest articles


Clubbed to debt: the rise of clubroot

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

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

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

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



Don’t blame ergot on the weather

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

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


Where have these funguys gone?

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

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