花叶病和黄叶病的区别与防治花叶病和黄叶病是危害果树生长的两种不同病害，果农易将这两种病害混淆，难于对症下药及时防治：花叶病是一种病毒病害，我国各地果园普遍受其危害。果树感染此病后，树势衰弱，产量降低，果品质量下降，还易并发其它病害。其症状主要表现在叶... Mosaic disease and yellow leaf disease and the prevention and treatment of Mosaic disease and yellow leaf disease are two kinds of diseases that endanger the growth of fruit trees, fruit farmers easy to confuse these two diseases, it is difficult to prescribe the right medicine in time: Mosaic disease is a viral disease Orchards around our country are generally harmed. After the fruit tree infects this disease, the tree vigor is weak, the output is reduced, the quality of the fruit is reduced, and it is also easy to be complicated with other diseases. The symptoms are mainly manifested in the leaves ...