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1)彻底清园,消灭越冬病虫。2)加强管理。定植前及每年采收后,都要开沟施足优质有机肥料,保持强壮树势。追肥应使用含氮、磷、钾及微量元素的全肥,避免单独、过量施用氮肥。平地或水田改植的葡萄园,雨后及时排水,防止果园积水。除草、摘梢、绑蔓等田间管理要及时,使园内有良好的通风透光状况,降低田间湿度。这些措施都利于增强植株的抗性,而不利于病菌的侵染、生长和繁殖。3)化学防治。在搞好清园越冬防治的基础上,生长季节在开花前、后各喷一次波尔多液或500~600倍百菌清液,对控制黑痘
1) Thoroughly clearing the garden to eliminate overwintering pests. 2) Strengthen management. Before planting and after harvesting each year, we must ditch enough to apply organic fertilizers to maintain strong tree vigor. Dressing should use nitrogen, phosphorus, potassium and trace elements of the whole fertilizer, to avoid separate, excessive application of nitrogen fertilizer. Flat or paddy fields to plant vineyards, timely drainage after the rain, prevent orchards water. Weeding, pick tip, tied Man and other field management in a timely manner, so that the park has a good ventilation and light conditions, reduce field humidity. These measures are conducive to enhancing plant resistance, but not conducive to pathogen infection, growth and reproduction. 3) Chemical control. On the basis of doing a good job in the prevention and control of overwintering Qingyuan Park, before the flowering, the growth season sprayed once Bordeaux mixture or 500 to 600 times of chlorothalonil supernatant to control acne