结球甘蓝是十字花科植物,又名洋白菜、卷心菜,喜温和气候,较耐寒,具有很高的经济价值和营养价值。近年来,代县在政策扶持下发展日光温室超过1 500亩。甘蓝是本地日光温室冬春茬栽培的主要蔬菜,种植面积接近1 500亩,平均亩收入6 000元左右。由于温室中气候适宜病虫害越冬,致使病虫害发生比露地严重,其中霜霉病、黑腐病、黑斑病、黑胫病、蚜虫、小菜蛾尤其严重,发生面积占种植面积 Cabbage is a cruciferous plant, also known as cabbage, cabbage, like a mild climate, more cold, with high economic value and nutritional value. In recent years, on behalf of the county under the policy support the development of more than 1,500 acres of solar greenhouse. Cabbage is the main vegetable cultivated in winter and spring in the local solar greenhouse. The planting area is close to 1,500 mu, and the average mu income is about 6,000 yuan. Due to the suitable climate and pests in the greenhouses, the occurrence of pests and diseases is more serious than that of the open fields, especially the downy mildew, black rot, black spot, black shank, aphids and diamondback moth.