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.
The leaves of tomato plants often respond to different stresses by curling or rolling. If your tomato plants suffer from leaf rolling or curling, some simple garden-sleuthing can help you determine the cause and an appropriate remedy.