Category: Crop Schools

Wheat leaf diseases aren't always capable of overwintering in Canada. Besides often needing shelter from harsh winter conditions, the pathogens also suffer from a relative lack of alternate hosts. This year, however, stripe rust — a disease caused by the fungus Puccinia striiformis — took sanctuary in winter wheat fields in parts of the prairies,... Read More

OMAFRA Weed Management Lead Mike Cowbrough has been getting lots of calls from growers this year looking for tips on how to control tufted vetch in soybeans. The perennial legume is tough to control in an annual legume crop like soybeans, and there's virtually no way to control it once the crop is out of... Read More

Is all protein in wheat the same? Are there several kinds of protein? What happens to protein when wheat is in storage? Is gluten strength the same as protein quality? What is gluten, anyway? If you've asked yourself these questions (and more!) you're most certainly not alone. Understanding the role protein plays in crop quality... Read More

Perhaps we should go ahead and just call 2014 the year of variability. Manitoba farmers struggled with a late, wet spring, as did many parts of Saskatchewan. Alberta has largely fared far better, with the pendulum swinging the other way and into too-dry for the Peace region. Crops can grow their way out of the... Read More

Erysiphe pisi, the pathogen that causes powdery mildew in peas, first becomes visible in spots on the upper surface of leaves, particularly those in the lower canopy. Once the fungus infects its host, it is quick to spread, coating the surfaces of plant tissue with a fine, blue-white powder. Powdery mildew in peas is largely... Read More

Chlorosis, or yellowing of leaf tissue in plants, can be an indicator of a great number of issues from nutrient deficient soils to poor root systems or saturated soils. Manitoba farmers especially are dealing with excess moisture this year, even outside of the flood zones along the Assiniboine River, and while soybeans do take standing... Read More

Any of a number of factors can cause a pulse crop to become nitrogen deficient, particularly issues with inoculant. Using the wrong Rhizobium species, applying inadequate rates or storing bacteria improperly can decrease the likelihood of proper root nodulation. Less controllable factors, like extreme plant stress or inoculant/soil desiccation can also have a huge impact.... Read More

Growing Degree Days (GDD) are an indicator of expected crop development based on weather conditions. GDDs are calculated by taking the mean temperature over a day and subtracting a base temperature. For most cereal grains, the base temperature is considered 5 degrees C, as they require around 1200 GDD to reach maturity. GDD = (Tmax... Read More

As canola moves into flower, farmers are doing a great job scouting, scouting and doing more scouting. If you're like most farmers, though, seeing insects immediately raises a red flag. While, yes, there are several pest species of note in the canola crop, not everything that moves or crawls on the crop is a pest.... Read More

If it's not raining, maybe it's time to tromps through the corn field. It doesn't take long for weed pressure to accumulate in a crop, especially in conditions where the crop canopy is slow to close. But deciding on a re-spray is every bit as complicated as deciding what to spray. Assessments should include staging,... Read More