灰霉病是日光温室常见的一种病害，近年来，随着温室芸豆同年面积的不断扩大，危害呈加重趋势，经调查，田间病株率在 20％～ 30％之间，一般造成减产 40％左右，严重者绝收，严重影响产量和效益，为改变这种现状，在对症状和发病规律进行不断研究的基础上， 1998～ 1999年，我 Botrytis cinerea is a common disease in solar greenhouse. In recent years, with the continuous enlargement of greenhouses in the same year, the harm tends to increase. After investigation, the rate of diseased plants in the field ranges from 20% to 30% % Or so, a serious case of unmanageable, seriously affecting the yield and benefits, in order to change the status quo, in the study of the symptoms and pathogenesis on the basis of continuous research, from 1998 to 1999, I