4月中下旬气温明显回升，病虫害进入高发期，蚜虫、红蜘蛛、介壳虫等虫害活跃，白粉病、锈病等病害也易滋生，为守护校园树木健康成长，绿化工作人员通过喷洒环保药剂为树木生长保驾护航，让绿意常驻校园。

                                                       初审：孟令新

                                                       复审：刘凯丰

                                                       终审：马维军