在国际生物多样性日即将来临之际,国家环保总局有关负责人近日提出警告:外来物种入侵正成为威协我国生物多样性与生态环境的重要因素之一。据统计,松材线虫、湿地松粉蚧、松突圆蚧、美国白蛾、松干蚧等森林入侵害虫严重发生与危害的面积在我国每年已达150万公顷左右。稻水象甲、美洲斑潜蝇、马铃薯甲虫、非洲大蜗 At the dawn of International Biodiversity Day, the responsible person of the State Environmental Protection Administration has warned recently that the invasion of alien species is becoming one of the important factors that threaten China’s biodiversity and ecological environment. According to statistics, the serious occurrence and harm area of ​​pests in forest of Bursaphelenchus xylophilus, Ichthyoderma tenodensis, Bursaphelenchus xylophilus, Hyphantria cunea and Tricholoma matsutake have reached about 1.5 million hectares annually in our country. Asiatic weeds, Liriomyza sativae, potato beetles, African snails