每到秋冬季节,在果园进行清园管理时,常会喷施各种农药以保护树体安全过冬,压低病虫害在下年的发生基数。据调查,果农对果树喷药,一般都不如对水稻、棉花和蔬菜等作物那样仔细和对路,因而不是效果不好,就是造成树体的药害,降低过冬期的抵抗不良环境的能力,适得其反,值得引起注意。 Every autumn and winter, when conducting orchard management in the orchard, various pesticides are often sprayed to protect the tree from overwintering and to reduce the occurrence base of pests and diseases in the next year. According to the survey, fruit growers spraying fruit trees are generally not as careful and correct as they are for crops such as rice, cotton and vegetables, so they are not ineffective and are capable of causing phytosanitary damage and reducing the adverse environmental resistance during the winter. Counterproductive, it is worth attention.