果树冬春防病要点

• 作 者: 刘云 田苗
• 出 处: 陕西林业
• 发表日期: 1999年06期
• 关键词: 果树害虫 生活周期 生长季节 越冬虫 越冬场所 越冬寄主 果树叶 病虫枝 病虫基数 僵果

从果园调研到采访果农后揭示,不少果农习惯于在新老果园特别是山区老果园的果树生长季节防治病虫,而往往忽略了冬春闲时防治的大好时机。这是导致果树近几年病虫害猖獗的重要原因之一。 冬春季节,是果树害虫、病菌处于越冬或活动初期,也是它们生活周期中最薄弱的时

From the investigation of the orchards to the interview with farmers, many peasants are accustomed to preventing and controlling pests in the fruit-growing season of old and new orchards, especially the old orchards in mountainous areas, and often neglect the golden opportunity of prevention and treatment in winter and spring. This is one of the important reasons for the rampant pests in fruit trees in recent years. Spring and winter, is a pest of fruit trees, bacteria in the winter or early activities, but also the weakest of their life cycle