Canola and Mustard: Swede Midge (Contarinia nasturtii)

Field Crop Protection Guide 2011-2012, Order 2011-2012 publication

Table of Contents

1. Integrated Pest Management Options
2. Related links...

Integrated Pest Management Options

Swede midge is a serious pest of spring canola though winter canola can experience damage. Under heavy midge infestations, later-planted spring canola plants may experience stunting and malformed growth, with extremely reduced flower and pod formation. Thresholds and spray timing are not available at this time. For more information on this pest, see the OMAFRA Publication 811, Agronomy Guide for Field Crops, for further information on pest biology and management options.

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Related links...

• Factsheet: The Swede Midge – A Pest of Crucifer Crops In Ontario
• Insects
• Canola and Mustard
• CFIA website