Galpern: Surveillance networks for beneficial insects: Can natural habitats serve as insect reservoirs and do they contribute to yield?
The surveillance network identified a total of 157,407 arthropods of 418 species from 317 sampled areas in southern and central Alberta. Sampling by the surveillance network developed a geographically extensive database on the distribution and abundance of beneficial arthropods found in Canadian prairie croplands.
Tomasiewicz: Evaluation of sap nitrate for in-season assessment of crop nitrogen status
Fertigation is the application of fertilizer in irrigation water. This practice offers producers a means to maximize their fertilizer nitrogen use efficiency in high-yield canola production.
Smith: Assessing surface wax chemical diversity as a tool to defend against abiotic and biotic stress in canola
The outer surfaces of land plants are covered by a complex water-repelling material referred to as cuticular wax. This layer plays a fundamental role in prevention of water loss from the plant and in defense against attack by insect pests and fungal pathogens.
Vankosky: Development of a pheromone-based monitoring system for a newly identified Contarinia midge on the Canadian Prairies
The canola flower midge Contarinia brassicola Sinclair (Diptera: Cecidomyiidae) is a newly-described species that induces galls on canola, Brassica napus Linnaeus (Brassicaceae) (Mori et al. 2019). The galls prevent flowers from opening and subsequent pod formation.
Monitoring SOC on commercial direct-seeded fields across Saskatchewan – Phase 4
Researchers at the University of Saskatchewan conducted a study to assess the nature and permanence of sequestered soil organic carbon (SOC) i) in contrasting Saskatchewan soils after 21 years of conservation management practices and ii) in soils with contrasting land management histories.
Strelkov: Development of a Harmonized Clubroot Map
Clubroot maps can serve as important tools for grower education, the selection of effective disease management strategies, and assessing disease risk in specific regions.
Vankosky et al: Assessing the impact of Contarinia sp. on canola production across the Prairies
In 2016, a new species of midge, Contarinia brassicola Sinclair (Diptera: Cecidomyiidae), that develops on canola (Brassica napus L., Brassicaceae) was discovered in Saskatchewan and Alberta (Mori et al. 2019). At the time, nothing was known about its biology or potential impact on canola production.
Pre-Harvest Herbicide and Dessication Options for Straight-Combining Canola: Effects on Crop Dry-Down and Seed Quality
With improved genetic pod shatter resistance and increasing producer confidence in the practice, straight-combining canola has become increasingly common in western Canada to the extent that the proportion of acres that are straight-combined in 2020 could approach 50%.
Vankosky: Ecology of Swede Midge Host Plant Interactions
The swede midge, Contarinia nasturtii (Diptera: Cecidomyiidae), is an invasive insect pest of canola (Brassica napus L. and B. rapa L.) and other brassicaceous vegetable crops in Canada.
Agnew: Defining Best Management Practices for Using Supplemental Heating with Natural Air Drying
Many producers use natural air drying (NAD) systems to minimize the capital and operating costs of grain drying; however, very little practical information or best management practices are currently available.
Grieger: On-Farm Survey of Combine Grain Loss in Canola Across Western Canada
Canola is an essential crop in the Canadian Prairies, and canola losses are an unfortunate part of harvest that must be managed by producers. Canola losses can be categorized as environmental losses, header losses, or combine losses.
Sheedy: Saskatchewan Water Monitoring Program for Neonicotinoid Pesticides
Neonicotinoids are an important family of insecticides in Saskatchewan, and are estimated to contribute to agricultural production in excess of $15 billion annually.
Simko: Toxicopathological Determination of Safe Dose Ranges of Neonicotinoids for Honey Bee Colonies
Neonicotinoid insecticides are used as a seed treatment for a variety of crops worldwide, including canola. Those treated crops contain low residues of neonicotinoids in nectar and pollen, however the true impact on honey bee health is disputed and controversial.
Hallett: Enhanced modelling of swede midge population dynamics in North America
Swede midge has been an economically significant pest of Brassica crops in ON, QB, NS, and PEI since 2000. An insect with swede midge like appearance has also been observed in SK and MB since 2007 and 2008.
Farrell: Identifying the mechanisms responsible for the greater than expected residue-induced N20 emissions from canola and flax
The carbon intensity of commodities is an important marketing consideration for many crops including canola. Research was conducted to identify the factors contributing to previous observations that nitrous oxide (N2O) emissions from canola and flax residues were greater than those from wheat residues.
Peng: Enhancing the Durability of Clubroot Resistance with Multiple Genes
Clubroot continues to spread on the Canadian prairies, posing a serious threat to canola production. Cultivar resistance is the key to clubroot management, but the 17 “new” pathotypes identified recently in Alberta all appeared virulent to current resistant cultivars in the marketplace.
Willenborg: Improving Weed Management for Saskatchewan Growers
Herbicides represent a major expense to growers, with Saskatchewan growers spending an estimated $800 million or more in 2014, and now represent the second most expensive crop production input after fertilizers.
Mohr: Impact of Source and Placement of Nitrogen and Sulphur Fertilizers on Canola
Increasing farm size in western Canada has led many farmers to move back to less efficient broadcast nitrogen application in an effort to hasten spring seeding operations.
Brandt: Enhancing Canola Production with Improved Phosphorus Fertilizer Management
Canola has a relatively high phosphate requirement compared to cereals, and with high yielding canola hybrids, the safe rates for seed-row placement are typically insufficient for yield optimization.
Optimal Seeding Rate Based on Seed Size in Canola
The Canola Council of Canada recommends that to reach maximum canola yield potential, the seeding rate should be sufficient to achieve a spring plant density of 5 to 8 plants/ft2.