Violet root rot

Violet root rot (Helicobasidium brebissonii) is a plant pathogen found mainly in carrots.

Symptoms
Characteristic root symptoms are soil clinging to partially rotten, leathery textured roots. The leathery root surface will be a purplish or violet colour.

Prevention
Avoid infected areas, rotate grain crops, ensure good drainage and nutrition and, most importantly, reduce the spread of infected soil on tools.