The sooner the better: It’s easier and more cost effective to overcome infestation by controlling botrytis cinerea in its initial stage. Make it a routine to monitor the field regularly and search plants for the presence of botrytis cinerea on a weekly basis.
As with any moisture-favorable disease, various techniques taken during crop growth can reduce the chances of infection and spread: Maintain adequate space:
Avoid over density planting in order to allow light to penetrate and promote the quick drying of leaves and fruits on humid days.
Sanitation: Remove plant debris and make an effort to keep your field and its surroundings as clean as possible
Improve air circulation: Promote drying foliage and shorten the duration of wetting periods by introducing net curtain vented areas
Proper soil drainage: The presence of standing water will promote the spread of botrytis cinerea
Other moisture reduction techniques include covering the ground with polyethylene sheets to reduce evaporation from the soil