Fire ants in the garden? Here’s a treatment we’ve used successfully for years without reaching for conventional ant poison.
For those who just want the recipe, I’ll save you some reading.
#1
Just Give Me the Recipe
Simple Version
This is the one we use when we don’t have everything for the full Garrett Juice recipe.
For 1 gallon:
- 2 oz orange oil (d-limonene)
https://amzn.to/4rjqPR0 - 2 oz liquid molasses
https://amzn.to/4yHV0DW
or
https://amzn.to/4cXD13X - 1 gallon water
Pour a solid stream directly into the center of the fire-ant mound so it penetrates into the colony, then pour the remainder over and around the mound.
Why Does It Work?
The orange oil contains d-limonene, which disrupts the protective waxy coating on the ants’ exoskeleton. The molasses also has value beyond this treatment because it provides a carbohydrate food source for soil microorganisms.
We’ve used this simple mixture directly in our gardens with good results.
Full Dirt Doctor Version
Howard Garrett, better known as The Dirt Doctor, recommends adding orange oil to his Garrett Juice mixture:
- 1 cup compost tea OR liquid humate
https://amzn.to/4ruHJMM - 1 oz liquid molasses
https://amzn.to/4yHV0DW
or
https://amzn.to/4cXD13X - 1 oz apple cider vinegar
https://amzn.to/4jff4Jf - 1 oz liquid seaweed
https://amzn.to/4xwd5nD - 2 oz orange oil (d-limonene)
https://amzn.to/4rjqPR0 - Water to make approximately 1 gallon
You certainly don’t have to order these ingredients from Amazon. Depending on where you live, many of them can be found at local garden centers, feed stores, hardware stores and grocery stores. Apple cider vinegar and molasses are especially easy to find locally, and garden centers or farm/feed stores may carry liquid seaweed, humates and other soil amendments.
We’ve included Amazon links because these are products we’ve actually used and found to be a good combination of quality and price per ounce. Shop locally when it makes more sense for you.
That’s really all you need to know if you just came here because fire ants are trying to take over your garden.
But if you’re wondering why we keep gallon containers of some of this stuff around the homestead—or why this approach interests us beyond killing ants—keep reading.
#2
Now for the People Who Want to Know Why
One of the things we’re trying to do at Root Awakening Homestead is look at problems a little differently.
Instead of only asking:
“What kills this?”
We also ask:
“How can we solve the immediate problem without damaging the rest of the system?”
That’s where this recipe becomes more interesting than simply being another ant killer.
We’ve Actually Used This in Our Gardens
This isn’t something we found on the internet yesterday and decided to repost.
We’ve used this treatment directly on fire-ant mounds in our gardens with good results. When we’ve had all the ingredients, we’ve made the full version. When we haven’t, orange oil, molasses and water have worked well for us too.
And we’ve been using Garrett Juice itself in our gardens for years.
We LOVE this stuff.
We’ve seen a huge difference in plant growth and overall plant health when we’ve used it consistently.
Garrett Juice Isn’t Really an “Ant Product”
That’s an important distinction.
The basic Garrett Juice ingredients—compost tea/humate, molasses, apple cider vinegar and seaweed—have uses in the garden completely separate from fire ants.
The orange oil is what turns this particular mixture into the mound treatment.
That means we’re not buying five products that sit on a shelf waiting for another ant mound to appear.
We’re keeping useful garden inputs around that can perform multiple jobs.
Compost Tea / Humate
Healthy soil isn’t simply dirt.
It’s a living ecosystem containing bacteria, fungi, protozoa, nematodes, insects and countless other organisms interacting with one another.
Compost tea and humate are used as soil inputs to support that system. This is one of the foundations of why we’ve used Garrett Juice for so long.
Liquid Seaweed
Seaweed is another ingredient we can use throughout the garden rather than just for ants.
It’s commonly used as a soil drench or foliar application and supplies minerals and naturally occurring compounds associated with plant growth and stress response.
And you don’t use much.
Molasses
Molasses supplies readily available carbohydrates that can feed soil microorganisms.
We can use it in Garrett Juice, compost/biological applications, and our simplified fire-ant treatment.
One container. Multiple jobs.
Orange Oil
Orange oil contains d-limonene, which is responsible for much of the immediate insecticidal action in the mound treatment.
But concentrated orange oil is also a powerful citrus solvent and degreaser, so it has other uses around the homestead.
Just don’t confuse “natural” with “harmless.”
Concentrated orange oil is powerful stuff.
We keep the ant treatment concentrated on the mound rather than unnecessarily soaking nearby plants, and concentrated orange oil should always be appropriately diluted for its intended use.
What About Beneficial Nematodes?
This is where things get even more interesting.
Certain beneficial nematodes are natural parasites of insects. They seek susceptible insect hosts in the soil and work with symbiotic bacteria that ultimately kill those hosts.
They’re another biological tool that can be incorporated into a larger fire-ant management strategy.
Rather than thinking only about killing whatever insect we see today, we can also think about building an ecosystem where biological relationships help keep populations in balance.
“Why Would I Buy a Gallon of This Stuff?”
You probably shouldn’t—if you’re only going to treat two ant mounds.
Smaller quantities are available, and some of these products may already be sitting in your pantry, garage or garden shed. You can also check your local garden center, feed store, hardware store or grocery store before ordering anything.
We linked the larger sizes because these are products we’ve actually used and they represent some of the best combinations of quality and price per ounce we’ve found.
And if you garden regularly, the math changes considerably.
At only 1 oz of seaweed per gallon, for example, a gallon contains enough seaweed for roughly 128 batches of the full mound mixture.
A gallon of molasses provides enough for approximately 128 full-recipe batches at 1 oz each, or about 64 batches of the simplified recipe at 2 oz each.
So these aren’t ingredients we’re expecting someone to use up killing ants.
They’re garden and homestead supplies that happen to make a pretty effective fire-ant treatment too.
If you don’t have a garden or another reason to use them, buy smaller quantities or pick them up locally.
There’s a Bigger Lesson Here
This is the part that interests us most at Root Awakening Homestead.
A fire-ant mound is the thing we can see.
It’s tempting to identify the pest, find something that kills it and consider the problem solved.
Sometimes that’s exactly what needs to happen.
But we don’t want to stop there.
When a system is struggling, don’t stop at the symptom. Follow the relationships toward the root.
What’s happening in the soil?
What organisms are present?
What’s missing?
What are we feeding?
What are we destroying unintentionally?
And how can one input perform several useful functions instead of requiring another single-purpose product?
That’s systems thinking applied to a garden.
And once you start looking at the land that way, you begin seeing a lot more than ants.
Root Awakening Homestead
Rooted in old ways. Growing new ones.
Sources & further reading
This article shares our own garden experience. These references provide additional context; different methods and results should be evaluated on their own merits.
Visual Story · Coming Soon
A field guide to keep close.
A future illustrated walkthrough will show the ingredients and method. For now, use the print button for a readable paper copy.
What have you tried?
Have you used orange oil, Garrett Juice or beneficial nematodes? We’d especially like to hear about methods you’ve personally tried and what happened.
Share your experience with us
