Seed early to reduce swede midge damage

November 13, 2015

KEY PRACTICE: Where swede midge is a concern, seed as early as possible. Where swede midge can cause significant losses, consider B. juncea or S. alba varieties over B. napus.

PROJECT TITLE, LEAD RESEARCHER: “Assessing the impact of swede midge on canola production in the Prairies and Ontario,” 2005-08, Rebecca Hallett, University of Guelph

GROWER ORGANIZATION FUNDER: Alberta Canola, SaskCanola


Swede midge were found in three fields in Saskatchewan for the first time in 2007 and eco-climatic modeling indicates that most of Canada is suitable for establishment. Although researchers expect the insect will become a regular pest of canola in the Prairie provinces, they do not expect the populations to reach the high levels found in Ontario.

Rebecca Hallett, researcher with the University of Guelph’s School of Environmental Science, led a three-year project beginning in 2005 to provide canola producers with information about the distribution and impact of swede midge and appropriate management practices.

Open the PDF to read the entire research summary from the 2015 Science Issue of Canola Digest

You can also read the 2015 Science Issue of Canola Digest as a flipbook

Visit the Canola Research Hub website to search the database of grower funded research

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