黑龙江省的果树生产已有80多年的历史,从无到有,对改善人民生活,发展农村经济具有重要意义。由于冬春季气候的影响,已给果树的发展披上阴影,使果树的发展速度变缓,为了减轻冬春季气候带给果树的影响,应注意以下危害的防治。一、冻害在黑龙江省的果树生产中,危害最严重为冻害,一 Heilongjiang Province has 80 years of fruit tree production history, from scratch, to improve people’s lives, the development of rural economy is of great significance. Due to the influence of the winter and spring climates, the development of fruit trees has been shaded, which slowed down the development of fruit trees. In order to reduce the impact of winter and spring climates on the fruit trees, attention should be paid to the prevention and control of the following hazards. First, frostbite in the production of fruit trees in Heilongjiang Province, the most serious harm to the frost damage, one