Battling Botrytis: A serious disease in greenhouse lettuce

摘要

Cloudy and rainy weather during the past months has resulted in many serious outbreaks of Botrytis grey mold in lettuce and in many other crops. This ubiquitous fungus readily attacks lettuce because of the moist, enclosed microclimate created insidethe lettuce head. If remedial measures are not taken at the first sign of infection, serious crop losses can occur.