果树农药种类较多 ,正确应用能取得好的防效。由于农药直接或间接地作用于果树的各个部位 ,如出现选药不当、配制错误、使用浓度过高、施用量过大、施用时期与方法不当 ,或将不能混合的农药混用等 ,有可能导致不同程度的药害 ,使果树生长受到影响 ,产量降低 ,果品质量变劣 ,甚 More types of fruit trees pesticides, the correct application can achieve good control effect. As pesticides directly or indirectly in various parts of the fruit tree, such as improper drug selection, preparation errors, the use of high concentrations, the application rate is too large, the application period and the method is not appropriate, or can not be mixed with pesticides may lead to Different degrees of injury, so that the growth of fruit trees affected, lower yield, deterioration of fruit quality, and even