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5～10月份多属高温多雨天气,是果树上多种病虫害的大发生期,是果园病虫害防治的关键时期。此时应准确及时用药,才能保证果品的产量、质量和其应有的经济价值。一、主要病害的防治技术1.轮纹病:它是危害果树枝干、果实和叶片的病害之一。防治方法是:(1)发芽前喷3波美度-5波美度石硫合剂或索利巴尔50-80倍液或轮纹净30-50倍液,来铲除病原菌。(2)生长季节用70%的轮纹净800倍液,50%多菌灵500-600倍液,甲基托布津800倍液,60%炭轮净700-900倍液,大生M-45 800倍液(兼治早期落叶病)或50%多霉清1200-1500倍液全园喷布把侵入果实内部的轮纹病杀死,每
May to October mostly belong to the hot and rainy weather, is a large period of occurrence of a variety of pests and diseases on fruit trees, and is the key period for pest control of orchards. At this point should be accurate and timely medication, in order to ensure fruit production, quality and its due economic value. First, the prevention and treatment of major diseases 1. Wheel disease: It is one of the diseases that endanger the branches, fruits and leaves of fruit trees. Prevention methods are: (1) before germination spray 3 Baume degree -5 Baume degree stone sulfur mixture or Solubar 50-80 times the liquid or round grain net 30-50 times solution to eradicate pathogenic bacteria. (2) growth season with 70% of the round of the net 800 times, 50% carbendazim 500-600 times, thiophanate-methyl 800 times, 60% carbon round net 700-900 times, Health M-45 800 times the liquid (and cure early deciduous disease) or more than 50% of the mildew 1200-1500 times the whole garden spray to kill the ring rot inside the fruit, each