森林害虫的防治工作,包括防与治两个方面。由于森林面积辽阔,山区地形复杂,树木高大,一旦害虫大发生,在短期内消灭不仅要花费大量的人力物力,往往会给生产上造成巨大的损失,因此,防比治具有更重要的实践意义。但是预防与灭治又是相互促进,相辅相成的两个方面,只有认真贯彻“预防为主,积极消灭”的方针,才能抑制和减轻害虫的危害。森林害虫的防治方法有:林业防治法、植物检疫、物理机械防治法、生物防治法、化学 Prevention and treatment of forest pests, including prevention and treatment of two aspects. Due to the vast area of ​​the forest, the mountain topography is complex and the trees are tall. Once the pest occurs, it will not only cost a lot of manpower and material resources in the short run, but also cause great losses in production. Therefore, it is more practical significance . However, prevention and cure are two mutually reinforcing and mutually reinforcing measures. Only when conscientious implementation of the principle of “prevention first and active elimination” can we conscientiously suppress and reduce the harm of pests. Forest pests control methods are: forestry control law, phytosanitary, physical and mechanical control law, biological control law, chemistry