The Post reports on Virginia’s move to ban the sale of dishwasher detergents that contain phosphates. Phosphorus has been found to be a major source of pollution in the struggling Chesapeake Bay. The ban won’t go into effect until 2010, however. The Soap and Detergent Association successfully lobbied several states, including Virginia and Maryland, the latter of which which already passed a similar ban, to wait two more years to put their bans in place…