Canola Watch quiz — pre-swath disease check Jay Whetter August 10, 2016 Leave a Comment 1. Identify the cause of these damaged stems. BlacklegClubrootHerbicide injurySclerotinia stem rotVerticillium stripe 2. BlacklegClubrootHerbicide injurySclerotinia stem rotVerticillium stripe 3. BlacklegClubrootHerbicide injurySclerotinia stem rotVerticillium stripe 4. BlacklegClubrootHerbicide injurySclerotinia stem rotVerticillium stripe Loading...