Ortho Fire Ant Killer 14 oz

If your main concern is getting rid of fire ant mounds already in the yard, a mound-by-mound treatment offers a more direct approach than spreading granules broadly. Ortho Orthene Fire Ant Killer1 is made for outdoor use and targets the colony, including the queen, with granules applied to each mound.

It begins killing in 60 minutes, and the 14 oz bottle treats up to 189 mounds, according to the product information. That makes it relevant for a yard with visible, existing mounds—not a stand-alone plan for preventing new ones from appearing.

Best use cases

This treatment is intended for fire ant mounds on lawns and around ornamental plants, including flowers, trees, and shrubs. The application is mound-focused: identify a mound, sprinkle the granules over it using the amount stated on the label, and move on to the next. No watering-in is needed, which keeps the process straightforward when you are treating several spots around a yard.

For example, if you notice mounds along the lawn near a flower bed, you can treat those individual sites rather than applying a broad layer across the whole area. Its stated coverage of up to 189 mounds gives a useful sense of scale, but the actual number treated depends on following the label’s specified amount for each mound.

Product specs

• Type: Outdoor fire ant killer granules
• Size: 14 oz
• Target: Fire ants, including the queen
• Stated coverage: Up to 189 mounds
• Where to use: Lawns and around flowers, trees, shrubs, and other ornamental plants
• Application: Sprinkle over each mound as directed on the product label, no watering-in needed
• Begins working: In 60 minutes

The treatment is for existing mounds. Ortho describes a separate two-step approach: use this product on current mounds, then apply Ortho Fire Ant Killer Broadcast Granules to help control new mounds for up to 6 months. Those broadcast granules are sold separately, so that longer-term follow-up is not included with this bottle.

Where it shines

Its clearest advantage is the focused application. You are treating visible mound locations instead of relying only on a broadcast product, and the listed 60-minute start time gives a specific expectation for when killing begins. The product information also says it targets the colony at its source, rather than describing a treatment limited to ants seen on the surface.

What if you want to handle the mounds you can see now, but also reduce the chance of new ones forming? That is where the distinction between the two steps matters: this bottle addresses existing mounds, while the separately sold broadcast granules are the suggested follow-up. From the way it is set up, the limitation is clear: this is not a complete, single-product plan for both tasks.

You’ll appreciate it if you want a targeted outdoor treatment for existing fire ant mounds and prefer not to water granules in after applying them. It may not suit you if you want one product to treat current mounds and provide the separately described follow-up control for new ones.

Should you buy it?

Choose Ortho Orthene Fire Ant Killer1 if your immediate job is treating visible fire ant mounds across a lawn or near ornamental plants, and the stated coverage fits the number of sites you need to address. The label-directed, mound-by-mound method is more specific than a broad-only treatment. Skip it as your only purchase if your priority is ongoing prevention: the product information assigns that role to a different, separately sold broadcast granule. For a yard with current mounds, it is a focused option, for a one-step solution covering both current and future mounds, it does not meet that brief.