Are We Winning or Losing the War on Weeds?

摘要

On the day you read this article, another 4,600 acres (1,863 hectares) of public lands will be invaded by weeds, according to a Bureau of Land Management and Utah State University estimate. In addition, since the September/October 2002 publication of a Public Roads article on the "war on weeds," a number of new species have spread along the Nation's roadsides. Among the new invaders are cogongrass, Japanese stiltgrass, wavyleaf basketgrass, and Chinese silvergrass.