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Club Root in Brassicas: Solarization and Tool Sanitation

Club root spores survive 5 years in soil. Rotation alone fails. Solarize: cover moist soil with clear 2-mil plastic 6 weeks in hottest summer (July/Aug) to reach 125°F (52°C). Disinfect tools: 1 part bleach to 10 water.

Complete Protocol

Solarize during peak heat.
Sanitize all tools used in infected bed.
Add lime to raise pH >7.2 (suppresses spores).
Grow resistant varieties if available.

Persistence pays—club root is beatable.

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