苹果是世界上栽培面积最广、产量最高的果树之一,也是我国北方的主要果树。发展无公害苹果,可以提高农民收入,发展果树还可以绿化城乡,美化环境,改选自然,减轻污染,有益于人体健康。 Apple is one of the most widely cultivated and highest yielding fruit trees in the world and is also the major fruit tree in northern China. The development of pollution-free apples will increase the incomes of peasants. The development of fruit trees will also beautify the urban and rural areas, beautify the environment, change nature and reduce pollution and benefit human health.