FILE -- This undated file photo from the U.S. Fish and Wildlife Service shows a portion of the Bandon Marsh National Wildlife Refuge outside Bandon, Ore., where a 400-acre salt marsh restoration has produced hordes of mosquitoes that have tormented local residents, golfers and and campers. Pressed by advocacy groups, the U.S. Fish and Wildlife Service has dropped plans to spray chemical pesticides to kill the mosquitoes. Instead, the agency will use a biological pesticide that poses less risk to the crabs, crawfish and worms that fish and wildlife depend on for food. (AP Photo/U.S. Fish and Wildlife Service)
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