By Clint Thompson Most of Georgia’s blueberry crop survived sub-freezing temperatures two weeks ago. Only the early Southern Highbush varieties received damage, says Renee Holland, University of Georgia area Extension agent for commercial blueberries. “There’s different species that we grow in Georgia, the Southern Highbush blueberry and the Rabbiteye blueberry. The Rabbiteyes look fine. The flower buds are still tight. …