马尾松是我地区主要造林树种之一,面积大,分布广,但历年来受病虫危害相当严重,据去年上半年不完全统计,被松毛虫危害后,所损失的木材约占全地区年木材生产任务的一半.而马尾松的病害,在近几年来也很严重.成片成片的枯黄和经常一株一株 Masson pine is one of the main afforestation species in my area. It has a large area and a wide distribution. However, pest and disease have been severely damaged over the years. According to incomplete statistics in the first half of last year, the damage caused by pine caterpillars accounts for about 18% Half of the timber production task, while the disease of Masson pine is also very serious in recent years into pieces of yellow and often a strain