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芦笋,又叫石刁柏、龙须菜,一般亩产值300～4O0元,高者可达1,000元,为我省重要的出口创汇农产品.但由于茎枯病的危害,每年都有不同程度的损失.芦笋茎枯病发生在茎、枝及拟叶上.开始为乳白色的小斑点,逐渐扩大成椭圆形成纺锤形.病部及健部的分界处呈油浸状,病斑边缘褐色或红褐色.中央灰褐色,散生小黑点.严重时病斑长满全茎或环绕茎部.芦笋茎枯病一般在大雨或连续降雨后5～10天发生.使用药剂防
Asparagus, also known as asparagus, asparagus, the general mu production value of 300 ~ 4O0 yuan, the highest up to 1,000 yuan, an important export for the province of foreign exchange earnings of agricultural products.But due to the dangers of stem blight every year to varying degrees Asparagus stem blight occurred in the stems, branches and leaves to be mimicked, began to milky white spots, and gradually expanded into an oval spindle shape.Department of pathological and healthy Ministry of the boundaries at the oil-immersed lesions edge brown or red Brown. Central gray-brown, scattered small black spots. Severe lesions covered with full stem or surrounded by stems. Asparagus stem blight generally occurs after heavy rain or continuous rainfall 5 to 10 days.