Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The fire ants (Solenopsis) of Florida (Hymenoptera: Formicidae).

Abstract

A key is given to 3 subgenera of Solenopsis and to the 3 species of the genus that are found in Florida: S. invicta Buren, S. geminata (F.), and (1 record only) S. xyloni McCook. Other species found elsewhere in the United States, S. richteri Forel and S. aurea Wheeler, are reviewed. Further distinguishing characters for identification of the Florida species are presented, and characters previously used that are now invalid are enumerated. Notes are given from the literature on the distribution, biology, economic importance and control of the Florida species. As well as causing itching, pustules and occasionally death in man by biting, all 3 species (especially S. invicta) have been known to cause economic losses in the harvesting of soy beans, hay and other crops and in the death of young livestock and game birds. Mirex in a bait at 0.3% for application by aircraft at 1.25 lb bait/acre or at 0.15% for ground application at 2.5 lb bait/acre or alternatively chlordane as a drench for nursery stock or as dusts or granules for application on non-food areas such as lawns and roadsides at 1.5 lb toxicant/acre, are recommended for chemical control.