Causal Agent: 
Abiotic
| Characteristic Symptoms: | ||
|  | The characteristic symptom of buggy-whip is the slight or complete fusion of the upper part of the plant into a tight tube that encloses the upper leaves and tassel. The tube develops above the soil line and is composed of thick, heavily lignified tissues that resemble a buggy whip or an onion leaf. | |
| Conditions for Disease Development: | ||
|  | Buggy-whip may be caused by some volatile herbicides e.g. 2,4-D. | |
|  | Certain hybrids may be affected severely with this disorder particularly under warm growing conditions. | |
| Management and Control: | ||
|  | Use varieties with good seeds. | |
|  | Use herbicides that are less volatile. | |
|  | Apply herbicide in accordance with label instructions. | |
|  | Avoid spraying of herbicide on extremely windy conditions. | |
|  | Avoid pesticide applications when plants are under water stress. | |
|  | Apply herbicide at proper time, rate and using the right application techniques. | |
References
Agriculture and Natural Resources Publication, FSA7549. Diseases of Turnip and Mustard Greens
(https://www.uaex.edu/publications/PDF/FSA-7549.pdf)
https://www.agric.wa.gov.au/broccoli/diseases-vegetable-brassicas?page=0%2C1
To view other diseases, click here.
Need more help? Ask the Doctor.
 
				                    


