林业有害生物无公害防治的问题是现在必须面对和急需解决的一个突出问题。如何实现林业有害生物防治的无公害化,建设生态安全的和谐社会,笔者认为应把好四关:一、把好检疫关检疫是防治有害生物在国际间、地区间传播的有效途径。1.要把好国际门户关,严防有害生物进出国。海关是进出口货物的主要检验关口,要严格检查出入境的货物是否携带有害生物,做到及时发现、及时处理。 The problem of pollution prevention and control of forest pests is a prominent issue that must be solved now and urgently. How to achieve the pollution prevention of pests in forestry and the building of a harmonious society of ecological security, I believe that we should make the four good: First, the quarantine inspection and quarantine is an effective way to prevent and control the spread of pests in the world and between regions. 1. We should make a good international gateway to prevent pests from entering and leaving the country. Customs is the main inspection mark for import and export goods. It is necessary to strictly check whether the goods entering or leaving the country carry pests, discover them in time, and handle them in time.