一、种子消毒因地制宜选用胡萝卜优良抗病品种。选择适合当地生产的高产、抗病虫、抗逆性强、品质好的优良胡萝卜品种。种子用50℃温汤浸种30分钟,或60℃下干热处理6小时,然后播种,可以减轻黑腐病、黑斑病等病害为害。二、农业防治避免与茄科、十字花科、葫芦科、伞形科蔬菜连作,与葱蒜类蔬菜及禾本科作物进行2~3年轮作。在田间管理上, First, the choice of seed disinfection carrots good disease-resistant varieties. Choose suitable for local production of high yield, pest resistance, resistance strong, good quality carrot varieties. Seeds soak for 30 minutes with warm soup at 50 ℃, or dry heat treatment at 60 ℃ for 6 hours, then sow seeds to reduce the damage of black rot and black spot. Second, the prevention and control of agricultural avoid with Solanaceae, Cruciferae, Cucurbitaceae, Umbelliferae with vegetables, and onion and garlic vegetables and grasses for 2 to 3 years rotation. In field management,