Disease control - Clubroot progress Professor Geoff Dixon asks what growers can learn from clubroot outbreaks around the world. by Geoff Dixon Clubroot: microbe infestation persists for decades and symptoms of cancerous root galling are easily recognised - image: Yara/Geoff Dixon Sign in to continue Sign in Email address Password Stay signed in Trouble signing in? Reset password: Click here Email: hwsupport@haymarket.com Call: 020 8267 8121 Register FREE 14 days limited access to subscriber-only content Register Subscribe From £299/pa Full access to horticultureweek.com Monthly print issue for 12 months Keep track of competitors, market trends, and policy changes with sector specific email bulletins Live email alerts from the pest and disease tracker New project leads and business prospects every week through the landscape leads service Bespoke multi-user packages available Choose a Package