LAKE WALES, FL -- October 13, 2010 -- Citrus grower Marty McKenna checks orange trees for disease in one of his orange groves in Lake Wales, Fla., on Wednesday, October 13, 2010.  The housing bust left orange groves - which were scooped up by investors - unattended, overgrown and full with disease.  That disease is spreading to healthy, adjacent fields - leaving citrus growers scrambling to replant lost production.  ..ORANGES