呼盟次生林区是我区重要的后备森林资源基地,主要树种有落叶松、樟子松、杨树等。但林木病虫害不断发生,并且迅速蔓延,严重影响了林木生长,甚至大面积死亡。常见的主要林木病虫害有落叶松鞘蛾、落叶松球蚜、落叶松早期落叶病、落叶松枯梢病、樟子松球果象甲、松梢螟、樟子松烂皮病和针锈病,阔叶树种的害虫有柳毒蛾、柞树潜叶蛾和山杨蛀干害虫。某些地区还发现了球果、种子以及苗圃害 Hume League secondary forest area is an important backup forest resources base in our region, the main tree species are larch, Pinus sylvestris, poplar and so on. However, pests and diseases of forests continue to occur and spread rapidly, seriously affecting the growth of trees and even large-scale deaths. Common main forest pests are larch shell moth, larch aphid, early larch deciduous disease, larch blight, Pinus sylvestris conchophylla, pine needle borer, Pinus sylvestris var. Mongolica and needle rust, The broadleaf tree pests are venomous moth, oak leaf moth and mountain borers pests. Some areas also found cones, seeds and nurseries