Diseases_10Names
Diseases_10Names
Black rot
This is a serious cabbage disease in Kenya and is caused by the bacteria Xanthomonas campestris. It can cause a total crop loss. Disease development is favoured by high humidity/rainfall and high temperatures (20-30 C). Infection occurs at all stages and may cause dwarfing. A an early stage, yellowish browndry leaf margins are observed in affected plants. If such lesions are held against the light, blackened vains are visible. When cut crosswise, affected heads turn black and soft. In extreme cases, heading may be hindered or completely prevented. Infected cabbage heads rt to give a characteristic offensive odor.
Yellowish brown dry leaf margins
unknown label
Xanthomonas campestris
- Too high air-humidity
- Too hot temperatures
- Crop rotation with different plant families
- Remove infected
- Seed treatment fungicide