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一、农业防治 桃园早春应搞好开沟排水,防止雨后积水,雨后中耕保墒,深度约8～10厘米。酸性土壤应施用石灰、粘重土增施有机肥料,盐碱地注意排盐。勿偏施氮肥,适当增施有机肥、磷钾肥及硼砂等微肥。要彻底剪除病、枯枝梢,摘除病叶,及时清扫残枝败叶,并集中烧毁或深埋地下,以改善通风透光条件,消灭初侵染源。 二、化学防治 1.早春桃树发芽后至开花前,喷布80％敌敌畏乳油1000倍液,可防治桃蚜和一点叶蝉;越冬成虫迁飞期,及时喷洒50％西维因可湿性粉剂500倍液,或
First, agricultural control Taoyuan should do a good job in early spring ditching drainage to prevent water after rain, soil moisture conservation cultivator, the depth of about 8 to 10 cm. Acidic soil should be applied lime, clay soil organic fertilizer application, salinization pay attention to salt. Do not bias nitrogen fertilizer, the appropriate organic fertilizer, phosphorus and potassium fertilizer and borax and other micronutrients. To completely cut off the disease, dead shoots, removal of diseased leaves, cleaning branches and leaves, and concentrated burned or buried underground, to improve the ventilation and light conditions, eliminate the source of primary infection. Second, the chemical control 1. Peach early spring after germination until flowering, spray 80% dichlorvos EC 1000 times, can control peach aphid and a little leafhopper; overwintering adult migratory period, timely spraying of 50% 500 times, or