山东省主要果树病害的发生与防治

山东省果树病在有３００种左右。苹果，梨，桃，杏，樱桃，葡萄枣柿，核桃，栗，山楂等重要栽培果树的病害种类多，为害严重采取以农业，生物，化学防治为主的综合防治措施能够有效地控制病害。

Occurence and Control of Diseases of the Main Fruit Trees in Shandong Province

There are about 300 kinds of fruit tree diseases in Shandong province.A great variety of plant diseases do harm to the mainly cultivated fruit trees such as apple,pear,peach,apricot,cherry,grape ,jujube,persimmon,walnut,chestnut,hawthrn and so on,and cause severe losses.By means of IPM consisting of agricultural,biological and chemical methods,the diseases can be controlled effectively.The influence on the development and control of diseases resulted from the change of cultivation and cultivars should be paid great attention in future researches.The non-polution control techniques should be popularized widely in order to produce green fruits.