| Clubroot | |
|---|---|
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| A Cabbage root suffering from clubroot | |
| Scientific Classification | |
| Kingdom: | Rhizaria |
| Phylum: | Cercozoa |
| Subphylum: | Endomyxa |
| Class: | Phytomyxea |
| Genus: | Plasmodiophora |
| Species: | Plasmodiophora brassicae |
Clubroot (Plasmodiophora brassicae) is a common disease of cabbages, radishes, turnips and other plants belonging to the family Brassicaceae (mustard family). It is an important disease, affecting an estimated 10% of the total cultured area worldwide.
Identifying Features[]
Gall formation or distortion takes place on latent roots and gives the shape of a club or spindle. In the cabbage such attacks on the roots cause undeveloped heads or a failure to head at all, followed often by decline in vigor or by death.
Treatment[]
The potential of cultural practices to reduce crop losses due to clubroot are limited, and chemical treatments to control the fungus are either banned due to environmental regulations or are not cost effective.
Prevention[]
Breeding of resistant cultivars is the most promising alternative.
Examples[]
| Brassica troubles |
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|---|---|
| Broccoli · Brussels sprout · Cabbage · Cauliflower · Kale · Kohl rabi · Radish · Swede · Turnip | |
| Adverse conditions | Blown sprouts · Bolting · Boron deficiency · Button cauliflower · Calcium deficiency · Heartless cabbage · Magnesium deficiency · Manganese deficiency · Molybdenum deficiency · Nitrogen deficiency · Split heart |
| Diseases | Anthracnose · Bacterial soft rot · Black leaf spot · Black rot · Brassica dark leaf spot · Club root · Downey mildew · Grey leaf spot (Brassica) · Turnip mosaic virus · Sclerotinia rot · White leaf spot · White leaf spot (Brassica) · White rust · Wire stem |
| Pests | Aphid · Cabbage aphid · Cabbage Moth · Cabbage root fly · Cabbage Whitefly · Cutworm · Diamondback moth · Flea beetle · Large White · Pigeon · Silver Y moth · Slug · Small White · Swede midge · Thrips |