The Argentine ant (Linepithema humile) is one of the most aggressive invasive ants in Polk County and across central Florida. Workers are uniformly dark brown, ~1/8″ long, and travel in tight defined trails. Argentine ants are multi-queen, multi-nest “supercolony” species — meaning a single connected population can span an entire neighborhood, making elimination from one yard difficult without coordinated treatment.
Argentine ant identification
- 1/8 inch, uniformly dark brown to black.
- Single petiole node (between thorax and abdomen).
- Twelve-segmented antennae without a club.
- No stinger.
- Strong, distinctive musty odor when crushed.
- Tight, defined foraging trails (not loose meandering).
Why Argentine ants resist treatment
Three reasons: (1) Multi-queen — killing visible workers and a few queens doesn't eliminate the colony; (2) Multi-nest — a single supercolony can span dozens of yards; (3) Repellent-triggered budding — retail pyrethroid sprays cause the colony to fragment, producing multiple new sub-colonies inside the same structure. The solution is non-repellent chemistry (fipronil, indoxacarb) + slow-acting bait that workers carry back to the colony.
Related Lakeland Exterminators pages
- Ant Control in Lakeland — service page
- Exterminator in Lakeland, FL — general service
- Quarterly vs. Monthly Pest Control — cadence
Frequently asked questions
Why do ants come back right after spraying?
Retail pyrethroid sprays are repellent. The colony detects the spray, fragments (budding), and re-establishes. Use non-repellent professional chemistry instead.
Do Argentine ants bite or sting?
They can bite but don’t sting. The bite is minor.
Can I eliminate Argentine ants in one visit?
Rarely. Multi-queen multi-nest colonies require sustained treatment plus baiting over weeks. Recurring quarterly is the standard.
What baits work on Argentine ants?
Slow-acting actives (fipronil gel, indoxacarb gel) plus liquid sugar baits (Optigard liquid). The active must transfer to the queen before workers die.
How do I find a Lakeland Argentine ant operator?
Call the number on this page. Operators routed through this line use non-repellent chemistry appropriate for Argentine ants.
Call (XXX) XXX-XXXX — routed to FDACS-licensed pest control operators serving Polk County, FL.