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油松是我们这里造林的主要树种,生长快,材质好,是优良的建筑用材之一。深受广大群众的欢迎。但是,近年来,随着油松栽植面积的扩大,山鼠为害日趋严重。日前,我场鼠害面积已发展到近万亩,约占油松幼林面积的1/4。幼树干皮被山鼠啃食后,轻者影响生长,重者(啃成环状剥皮)全株干枯,成片死亡。有些造林地,刚栽植的幼苗就被咬断,因而给造林事业带来严重威胁。
Pinus tabulaeformis is the main tree species for afforestation here. It grows fast and has good material, which is one of the finest building materials. Popular by the masses. However, in recent years, with the expansion of the area planted with oilseed ramulus, rat damage is becoming more and more serious. Recently, my area of rodent pests has developed to nearly mu, accounting for about 1/4 of young pine forest area. Stems of young trees were eaten by mountain rats, the light of the impact of growth, severe cases (eating ring-shaped peeling) whole plant withered, into pieces died. In some afforestation sites, newly planted seedlings are snapped off, posing a serious threat to afforestation.