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果实套袋是提高果品外观质量、防止病虫为害的有效措施,为了更好地达到这个目的,果农们必须注意以下五点: 一、纸袋选择:纸袋应选耐日晒、耐水性强、不易变形的。报纸糊的袋在高温高湿多雨年份易破碎,效果不太好,应尽量淘汰。纸袋不宜太小,以平面宽×长为14—16×19厘米为宜。袋顶两角各剪一个小口以通气调节袋内温湿度。 二、套袋时间:应在生理落果后和害虫产卵前进行,避免空套。对于易发生果锈品种应在落花后10—15天完成套袋工作。 三、套袋前必须喷一次杀菌药:对于易发果锈
Fruit bagging is to improve the appearance of fruit quality, to prevent pests and diseases of the effective measures to better achieve this goal, farmers must pay attention to the following five points: First, the choice of paper bag: paper bag should be selected sun, water resistance, not easy Deformed. Newspaper paste bags in high temperature and humidity, easy to break the year, the effect is not very good, should be eliminated. Paper bags should not be too small, with a flat width × 14-16 × 19 cm is appropriate. Each corner of the bag cut a small mouth to adjust the temperature and humidity ventilation bag. Second, bagging time: Physiological decoction should be carried out before the pests and spawning, to avoid empty sets. Fruit rust rust prone varieties should be completed 10-30 days after falling bagging work. Third, the bag must be sprayed before a bactericidal drugs: For the hair rust