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在果园生产管理中,不是所有农药都能用于各种果树上,尤其在夏季,高温高湿,一些农药应用不对,不仅没有效果,反而会使果树产生药害,造成减产损失。(1)代森锰锌(非络合态代森锰锌):不宜用于荔枝、葡萄的幼果期、某些梨树品种慎用,梨小果时施用代森锰锌易出现果面斑点。使用浓度过高时,在枣树上也易产生药害。(2)丙环唑:对瓜类、葡萄、草莓、烟草等作物敏感,要严格控制用量,在坐果后使用。
In orchard production and management, not all pesticides can be used on a variety of fruit trees, especially in the summer, high temperature and humidity, some pesticides wrongly applied, not only ineffective, but will cause injury to fruit trees, resulting in loss of production. (1) Mancozeb (non-complexed mancozeb): should not be used for litchi, grape young fruit stage, some pear varieties with caution, the pear small fruiting mancozeb prone to fruit surface spot. When the concentration is too high, jujube is also prone to injury. (2) Propiconazole: For melons, grapes, strawberries, tobacco and other crops sensitive to strict control of dosage, use after fruit set.