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The broadcast-ready heavy bag that clears the whole yard, not just a single mound.

You get season-long coverage from a single 80-ounce bag versus the Ortho Fire Ant Mound Blitz at 1.68 ounces. You apply it with a broadcast spreader when ants first appear, and the two-way formula combines a bait that kills worker ants with an insect growth regulator (a chemical that stops young ants from maturing) that prevents the colony from replacing them.

Buyers report that “Amdro granules eliminated all fire ants from yard within 1 day,” though some note that about 10% of mounds may resist and require a follow-up dust treatment. The double mechanism makes it harder for the colony to adapt compared to a plain bait. The product claims up to 3 months of fire ant control, which means fewer reapplications through the summer.

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Open a packet, pour it on the mound, and walk away — no measuring, no mixing, no waiting.

This is the mound killer for people who want a zero-fuss solution. Each bag contains 8 pre-measured packets (1.68 ounces total), so there is no scooping, no spreader calibration, and no guesswork. You just tear open a packet and pour the contents directly over each mound. One reviewer noted, “I poured packets into the ants holes in my yard and within the same day I stopped seeing ants crawling around the holes anymore.”

Unlike the Amdro broadcast bag, which covers the whole lawn, this product is strictly a mound treatment. It works great if you already see mounds, but it will not prevent new ones from forming between applications. Reviewers consistently mention that colony gone by the next morning, and that the powder is very fine, so wearing a mask during application is a smart idea if it is windy.

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A granular bait that kills the queen in 48 hours without requiring a drop of water.

Spectracide markets this as a “One Shot” killer because a single application controls fire ants for 3 months — the same duration claim as the Amdro but at a much smaller 1.5-pound size. You apply it by sprinkling 4 tablespoons (about four shakes) around each mound, and the key rule is to avoid sprinkling on the mound itself, because ants treat the granules on the mound as an attack and will not take them.

Owners mention it works “extremely well on fire ants” and that results show within 1-2 days. The larger granule size compared to the fine powder of the Ortho Blitz means less airborne dust during application. It works as both a mound treatment and a broadcast treatment, although the 1.5-pound bag runs out fast if you are broadcasting across a large lawn — for that, the Amdro’s 5-pound bag is a much better value.

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A spray that kills on contact with plant-based oils — but only if you hit the ants directly.

This is the one option on this list that uses plant-based active ingredients (peppermint, cedarwood, lemongrass, and clove oils) instead of synthetic chemicals. It is marketed as safe to use around pets and families when used as directed, and the formula is biodegradable. For households that have kids and dogs running through the yard every day, this is a meaningful difference from the chemical baits.

Be honest about what this spray can do: it kills fire ants on contact, meaning you have to spray each ant directly. Buyers’ experiences are split — one buyer mentioned it was “initially effective on large ants under lemon tree, but failed completely after 2 days; areas sprayed became full of ants.” Another said the strong scent was noticeable 50 feet away, though it dissipated by the next day. This is a spot-treatment spray for active mounds on a patio, walkway, or near a lemon tree, not a full-yard prevention solution. Compare it to the Ortho or Spectracide baits, which workers carry back to the queen — this spray has no carry-over effect.

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A straightforward granular bait that relies on the ants feeding each other instead of a chemical spray.

This is the bait-only option in the entry-level tier. It uses attractants to lure ants to the granules, and the ants then carry the bait back to the nest as food, killing the queen and colony within 24-36 hours. It is labeled for use on lawns, turf, ornamentals, landscapes, greenhouses, and most crops, making it one of the more versatile picks if you have multiple planting areas. It also carries an OMRI certification (a mark from the Organic Materials Review Institute showing the ingredients are allowed for organic production) — a detail that the NatureStop spray also covers but most granular baits do not.

The 1-pound container holds 16 ounces, which ties the NatureStop for smallest unit size among the granular options. This is fine for a few mounds, but if you have a larger yard you will need multiple containers. The label recommends applying in early morning or evening when temperatures are cool and ant foraging (the time ants spend searching for food) is at its peak — that applies to all baits, but it is especially important here since the active ingredient needs the ants to be actively carrying food.