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Scattered rain with more in the forecast will have growers wondering this week whether to spray fungicide to manage sclerotinia stem rot. Moisture is the key risk factor for sclerotinia stem rot. Without moisture a couple of weeks before flowering and humidity during and after flowering, disease severity and the return on investment from fungicide will be lower than if…
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Canada exports 90% of the canola we produce, and our global customers won’t accept anything less than squeaky-clean seed. This time of year, the keys are to ensure a crop protection product applied won’t cause concern for canola exporters, and to know a product's required interval between application and swathing…
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Crop staging comes into play for herbicide, insecticide and fungicide timing. So crops with plants at various stages — some at flowering, some barely at the bud stage, for example — present a challenge when deciding when to spray…
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Moisture is the key risk factor for sclerotinia stem rot. Without moisture before, during and after flowering, disease severity and the return on investment from fungicide will be lower than if moisture is present all through these periods. Moisture can come as rain, dew and/or humidity above 80%…
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Sclerotinia stem rot and cabbage seedpod weevil control timing depends on flowering stage. This article will help you estimate 10%, 20% and 50% flower…
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Slow canola emergence due to cool soils can increase the risks from seedling diseases and from flea beetles…
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Erosion of clubroot resistance is showing up in fields across central Alberta. Recent research by Alberta Agriculture and Rural Development (AARD) and the University of Alberta (U of A) has……
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Growers can have soils tested for low-level presence of clubroot at Manitoba's new Pest Surveillance Initiative (PSI) molecular detection laboratory. The lab processes and analyzes soil samples for presence of clubroot at very low levels, prior to noticeable plant symptoms,…
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A verticillium wilt committee, with representatives from the Canola Council of Canada, the CFIA, AAFC, provincial canola grower organizations, provincial government specialists and life-science organizations, will examine the disease risk in Western Canada and come up recommendations for management. Step one is to survey more fields this summer and autumn…
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