芦笋茎枯病是真菌性病害,各地普遍发生,蔓延很快,轻病区能使产量减少或降低品质,重病区导致毁产。病原菌分生孢子在气温10℃以上即可萌发,25～28℃为最适发病温度,分生孢子器只有在水滴存在时才能释放分生孢子,分生孢子借助风、雨等传播。因而,田问发病轻重与降水量、气温密切相关。排水不良、高温高湿、田间杂草多、 Asparagus stem blight is a fungal disease, common in all parts of the country, spread rapidly, and light ward can reduce or reduce the quality of production, severe ward lead to ruin. Conidia of the pathogen can germinate at the temperature above 10 ° C, and the optimum temperature is 25-28 ° C. The conidia can only release conidia when the water drop exists, and the conidia propagate through the wind and the rain. Therefore, the incidence of field incidence and rainfall, temperature is closely related. Poor drainage, high temperature and humidity, field weeds and more,