Download or read book Weeds Across Borders written by and published by . This book was released on 2002 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant invasions refer to those instances in which plants arrive in a new area and spread, proliferate, and exert environmental and usually economic damage in the new range. The purpose of the Tucson conference was to explore cooperative approaches for controlling invasive plant species. This international conference was attended by representatives of United States, Canada, and Mexico. The conference program was divided into these three subject areas: international perspective; invasive plant problems and management techniques; and policy discussions and recommendations.