Home / Quizzes / Canola Watch quiz — pre-swath disease checkQuiz August 10, 2016 Canola Watch quiz — pre-swath disease check 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... E-newsletter sign up +(opens in a new tab)Agronomy Fundamentals Explore articles on the best management practices for yield, profitability and sustainability:Plant Establishment Nutrient Management Diseases Insects Weeds Harvest and Storage Discover More Canola Encyclopedia (opens in a new tab)Past Issues (opens in a new tab)Canola Research Hub (opens in a new tab)Videos (opens in a new tab)