Plant Invasions: Policies, Politics, and Practices Weeds Across Borders 2010 will be held at the National Conservation Training Center in Shepherdstown, West Virginia (USA) from June 1-4. A cooperative effort of agencies and organizations from Canada, Mexico, and the United States, the biennial conference strives to advance the formulation of partnerships, sharing of information, and coordination of programs that transcend traditional borders. See the conference website for the Call for Papers, Agenda, and Registration Information.