农药是人类与病、虫、杂草等进行斗争,保证农作物丰收的有效武器。但它本身又是一种毒剂,其中一部分对人畜有很大的毒性。农药如使用不当,还会对农作物产生药害。夏季是果树迅速生长的季节,这时果树新陈代谢旺盛。如在炎热的中午气温较高时给果树喷洒农药,即容易造成喷药人员中毒,又常使果树产生药 Pesticides are an effective weapon for human beings to combat diseases, insects and weeds, and ensure the harvest of crops. But it itself is a poison, some of which are very toxic to humans and animals. Improper use of pesticides, but also produce crop injury. Summer season is the rapid growth of fruit trees, when the metabolism of fruit trees. If the hot noon temperatures to spray fruit trees pesticides, that is likely to cause spraying poisoning, and often produce fruit medicine