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 |
