clubroot
/ˈklʌbˌruːt/
noun
- A disease of plants, especially cabbage and related vegetables, that causes swollen, club-like roots and stunts growth.
- Gardeners often struggle with clubroot in soil that stays too wet.
- The farmer's entire cabbage crop was ruined by clubroot this season.
- Clubroot can survive in the ground for many years, making crop rotation essential.