Techniques for controlling individual mounds of the red and black imported fire ants were evaluated. Of the five techniques the following combination provided the best control: perimeter spray followed by disturbing the mound, applying the spray topically, and injecting the spray into at least 12 locations. Mounds were inactive within 3 minutes. This procedure used approximately 2 cans of wasp spray per mound and usually killed the mound. Approximately 5% of the mounds either contained live ants or relocated within 24 hours after treatment. Within 7 days, the relocated mounds had died, and there was no further relocation after 30 days. This procedure controlled ants effectively rapidly and killed treated mounds in most cases.