The sooner the better: It’s easier and more cost effective to overcome infestations by controlling bacterial leaf spot in its initial stage. Make it a routine to monitor the field regularly and search plants for the above symptoms on a weekly basis, especially during hot and humid periods.
As with any moisture-favoring disease, various techniques taken during crop growth can reduce the chances of infection and spread:
Sanitation: Plant debris must be removed during cultivation. Sanitize equipment that comes in contact with infected plants. Do not allow equipment or workers to pass through the field when foliage is wet.
Improve air circulation: Promote the drying of foliage and shorten the duration of wetting periods by introducing net curtain vented areas (in closed structures).
Proper soil drainage: The presence of standing water will promote the spread of bacterial leaf spot.
*Drip irrigation is preferable to other methods of irrigation since the practice of using overhead sprinkler irrigation systems can significantly contribute to spreading the disease.