Invasive species are plants and animals that are introduced into new areas in which they are not among the native flora and fauna; and because they no longer face the natural enemies or competition from their place of origin, they spread or reproduce prolifically. Nonnative species can cause significant changes to ecosystems, upset the ecological balance, and cause economic harm to our nation's agricultural and recreational sectors. On February 3, 1999, President Clinton signed Executive Order 13112, which directs the agencies of the executive branch of the federal government to work to prevent and control the introduction and spread of invasive species. The Federal Highway Administration (FHWA) recommends use of federal-aid funds for new and expanded invasive species control under each state's roadside vegetation management program. FHWA encourages the state departments of transportation to implement the Executive Memorandum on Beneficial Landscaping at every opportunity. This includes applying it to highway landscaping projects, rest area construction, scenic overlooks, state entrances, and transportation enhancement activities. In addition, FHWA recommends that roadside maintenance programs be given the necessary support to control and prevent invasive species. Preserving the native plants that exist on rights of way should be a priority. When these remnants are invaded by weeds, the weeds should be controlled as quickly as possible. Since plants do not understand political boundaries, states should work together to share information and equipment to halt the spread of invasive plants.


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Filing Info

  • Accession Number: 00790636
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Apr 10 2000 12:00AM