Clubroot disease, also known as cauliflower gall, is a fungal disease that affects plants in the Brassicaceae family, such as cabbage, broccoli, cauliflower, Brussels sprouts, kohlrabi, turnips, and radishes. It is caused by the soil-borne protist Plasmodiophora brassicae.
- Type of Infestation: Fungal Disease
- Common Name: Clubroot
- Causal Organism: Plasmodiophora brassicae
- Affected Parts Of the plant: Leaf, Root
Environmental favorable factors for pests/Diseases:
- Temperature: 20-25°C (68-77°F). This is when infection rates and symptom severity are highest.
- Humidity: Crucial, especially during the initial infection and early development stages. Soil moisture content between 40-70% (gravimetric) favors the pathogen.
Symptoms of Pest/Disease:
- Stunted growth: Affected plants will be smaller than healthy plants and may have difficulty producing heads.
- Wilting: Plants will wilt, especially during hot weather, due to their inability to take up enough water.
- Yellowing leaves: The leaves of affected plants may turn yellow or purple as the plant struggles to get the nutrients it needs.
- Clubbed roots: The most diagnostic symptom of clubroot is the presence of swollen, club-shaped roots. These roots may be cracked or appear rotten.
Measures to control Pests/Diseases:
| Products | Technical Names | Dosages |
| coc 50 | Copper oxychloride 50 % wp | 2gm/ltr |
| KTM | Thiophanate Methyl 70% WP | 250-600 grams per acre |
| SAMARTHA | Carbendazim 12 % + Mancozeb 63 % WP | 300-400 grams per acre |
