Two species of fire ants are found in Florida. Most notorious is Solenopsis invicta Buren, the red imported fire ant (RIFA), followed by the much less common Solenopsis geminata (Fabricius), the tropical or native fire ant.
Leaf curl is a plant disease characterized by curling of leaves, and caused by a fungus, genus Taphrina, or virus, especially genus Begomovirus of the family Geminiviridae.
Viral infections and wind damage contribute to tomato leaves curling, reports Gardening Know How. Physiological conditions including extreme temperatures cause tomato leaves to curl up. Although the exact cause of this condition is unknown, it is believed to be a form of self defense.