10 Best Ant killer for lawn 2021 (Reviews & Guide)

As weather changes, our lawns get infested with ants. Pest is not going to harm you in a single way. These ants can infest your food, destroy lawn and their painful bites are intolerable.

How to choose the best ant killer?

There are numerous factors to consider when deciding on an ant killer. The first element you need to decide is whether you want to apply a twig or a bait.

If you have trouble with more than one ants or bunch. You are not able to locate specific trails or mounds, the twig is probably the best option.

Another thing to keep in mind is that sprays generally tend to last a bit longer and are not as tormented by rain and wet weather.

If these elements are a concern, a liquid ant killer might be a good option to choose from.

If you decide to apply a bait, the satisfactory component is trying to decide what type of ants you are managing. Because this determines what kind of chemical is suitable for control measures.

Some ant species select sweets while others opt for meals. If you are not certain what kind of ant you are dealing with. Then you can use trial and error by means of seeing what form of food they took.

If that does not work, switch to at least one that is grease based.

Ten best outdoor Ant killer: Complete Buyer guide

These are our best picks of 2020 for ant killer insecticides. 

1. Terro outdoor liquid bait stakes

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Maybe you want the idea of setting liquid bait stations outside, but some of the products are too big or you are concerned about youngsters and pets entering into them.

Terro’s liquid bait stakes are an amazing alternative. These are not perfect for huge infestation, however, they may work for maximum ant problems.

Each package consists of eight weatherproof bait stakes with 0.25oz. of liquid. The ants are attracted to these baits and kill all families of ants before they have a hazard to get to your place.

The ants took the bait and returned to the colony to kill the other family members like queens and drones because they wanted to take it as food.

The Stakes make it so easy to position the traps in the ground and keep them there.

There is less worry that other animals are stealing the traps in the middle of the night. The stakes are weatherproof so that you don’t need to worry if it rains.

The tiered bait percent increases the bait’s consumption even minimizing the waste.

To see via window makes it smooth to screen the ant bait level so that you can replace it as necessary.

One thing you will like about this product is that the principle lively factor is Borax. It is highly effective at killing ants but it is not toxic like other insecticides.

When the bait is gone, you may throw the stakes inside the trash. Some humans have had luck with refilling the bait stations with new gel or liquid bait.

  • Make it easy to replace the traps duenBorax is a natural insecticide to stakesnTraps can be refilled and they are waterproofnLess hazardous to nontarget animal
  • Other animals may be attracted to the bait

2. AMDRO Perimeter bait granules

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AMDRO’s Perimeter bait works in a similar manner to Ortho’s granules. Ants are attracted to the granules, and they carry the bait again to the colony to spoil it.

 This accurate product can kill all varieties of ants, such as woodworker, hearth and 23 other species. 

The active ingredient in this product is hydra methylene 0.88%.

The granules create barriers around your home and yard. This barrier provides protection for up to 3 months.

Now imagine you have no fear about any ants to your backyard or home for an entire summer.

A single 24oz. bottle will cover 1080 linear ft and will be capable of treating the average home and yard at least five times.

The bait will begin to work its magic within a week of application, and the colony will be killed two weeks of setting up the bait.

The granules are smooth to follow, however, you need to protect children and pets away from them.

  • Long-lasting results up to three monthsnThe granules will kill the entire colony nOne bottle can provide multiple treatments
  • It can take up to two weeks to kill an ant colony

3. Ortho Home Insect Killer Granules

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Ortho home defense granules can provide three months of protection, and the goal to get rid of all types of bugs, not only ants.

If you also want to keep away the different pests like ticks, spiders, fleas and mole crickets, this product can be a great alternative for you.

This is a great ant killer for lawn, especially when you have a large infestation.

The active ingredient in this product is bifenthrin (0.115%).

Bifenthrin is an insecticide that is part of the parathyroid family, and it works on the nervous system of insects.

One application will manage the bugs and ants approximately for 3 months. One bottle can treat the home as much as 2000 square feet.

The first thing about this product is that pets and people can start using the yard again after the product has been applied and allowed to dry.

The granules can be applied to lawns, and close to ornamentals and flowers. Ortho home defense max granules are so easy to use.

The principle active factor is proven highly powerful in opposition to all forms of insects.

However, if you have a hearth ant problem we recommend an extraordinary product in this list. Fire ants are clever creatures and hard to kill.

  • Easy to usenEffective for multiple types of pestsnPets and humans can return to the yard after its application
  • Can not be used in vegetable field nIt is not ideal to use with fire ants

4. Ortho Orthene Ant Killer

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Fire ants are very dangerous insect pests because they cause nuisance, they chew and sting an unappeasable amount.

They may be very risky to pets and children in your backyard. Stings and bites from fire ants can cause allergic reactions, infections and in rare cases death due to allergic reactions.

Objectives of this product to destroy fire ants mounds consisting of queen. A single bottle can deal with as much as 162 mounds.

Ortho says their product is guaranteed to kill the colony, otherwise, you get the money-back guarantee.

Just sprinkle one tablespoon of this on a hearth ant mound, and it will start killing ants within hours. The queen and the rest of the colony should die inside three days.

This product is very successful because the active ingredient is 50% acephate.

Acephate can kill the insects once they contact or consume it. When the hearth ants eat the bait, their bodies remodel it into a chemical known as methamidophos. which is another very effective insecticide.

Methamidophos influence the nervous system, inflicting over activity within the brain, nerves, and muscles. This is a nerve poison.

This product is so easy to use, just sprinkle it on the mounds, and allow it to work its magic.

There is simply one caveat, you should not disturb the mound before the application of insecticide.

If you disturb the mound, the ants which might be uncovered to the powder will die, but the other workers will move the queen to a secure place.

  • Easy to usenKill mounds in three days nTarget fire antsnDoes not require watering
  • May not work properly if you disturb the moundnNot ideal for use around pets and children

5. Terro Outdoor Liquid Ant  Baits   

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Terro’s outdoor liquid baits are the go-to preference for most household pests. It makes the best experience to accept as true with its true emblem for an outside ant problem.

Terro’s 1-oz. outdoor liquid baits come in packs of six and each station is pre stuff and ready to go.

The bait attracts and kills the maximum common species of ants outside before they could get into the residence.

It is good for high ants infestations. Like other liquid baits, this product kills the ants slowly via interfering with their digestive system.

This killing mechanism is beneficial because it gives workers ants the threat to transport the bait to the queen and the rest of the colony.

Terro makes it easy to set those traps. They come with stakes attached that can be located directly into the ground.

The ants could be interested in the candy liquid and take it back to their burrows.

We simply like those traps due to the fact they can be placed easily and they are pretty easy for ants to get to. Just push the stake into the ground wherein you spot an ant activity.

It is good for high ants infestations. Like other liquid baits, this product kills the ants slowly via interfering with their digestive system.

This killing mechanism is beneficial because it gives workers ants the threat to transport the bait to the queen and the rest of the colony.

They do need to be placed out of reach of the children and pets. Sometimes liquid spilled out of traps and made a mess. It can stain concrete, and liquid may be poisonous to kids and pets.

  • Easy to set on grassesnPre-filled for easy usenKills the entire colony
  • It can be messynMay stain concrete

6. Buyer Advance Ant Killer Plus   

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Buyer’s advance ant killer plus is not only for ant control but It can also be effective against:

  • Fleas 
  • Spiders
  • Ticks
  • Roaches 
  • Wasps

This ants killing granules have two active ingredients :

  1. Imidacloprid 0.15%
  2. Beta-Cyfluthrin 0.05%

The two-way movement of this product treats insects for up to 3 months.

One bottle covers up to 1500 square ft. It is a first-rate spot remedy for ant mounds. The product comes in a convenient shaker bottle. Use around the perimeter of residence and lawn areas.

It is very handy and smooth to use. But you should keep pets and youngsters away from treated areas.

  • Kills multiple types of insects nWill kill the entire ant colony nEffective up to three months nConvenient shaker bottle
  • Slow killing, so it takes some time to kill the entire colony

7. Bio-Advanced 502832 Fire Ant Killer Dust

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Bio Advance Fire ant killer is a dust that is without difficulty sprinkled on fireplace ant mounds and eradicate the ants present in it.

The satisfactory aspect of this dust is that it looks after the ant quickly and doesn’t smell like other ant killers in the market. 

This bait kills the queen which can live for many years. If you try to break the mound without killing the queen, it can build a brand new mound. Within weeks, there will be hundreds of new ants.

In addition, to kill the queen, this chemical destroys the mound. If you spot smell and unpacked mound of dust in your lawn, it is far likely that there may be a colony.

If you disrupt the mound before making use of the dust, the queen may leave so place this formulation first.

This formula is guaranteed and in every field is enough to ruin more than 130 mounds. It is very low cost and affordable. The dust starts running as soon as its miles spread.

To destroy the colony, it typically takes about three days. It is very easy to apply, as all you need to do is shake the formulation at the mound. Then it will do the rest for you.

  • Easy to usenShows result in three daysnEffective for more than 130 mounds
  • It can be destroyed due to wetness in that area

8. Syngenta A20380A Advion Fire Ant Bait

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Syngenta Advion Fire ant bait is rapid appearing and incredibly powerful. This formula is designed to make sure that the fire ant population is managed in 24 to 72 hours.

You can use this on mounds instead of spreading in the yard. When you try this bait, you will realize that it is powerful on all of the hearth’s ant life. You can apply these chemicals up to four times every year.

This bait kills the queen which can live for many years. If you try to break the mound without killing the queen. Then it can build a brand new mound. Within weeks, there will be hundreds of new ants.

Most human brings practice each 12 to 16 weeks to make sure year-round safety. Keep in mind, if there were rain inside multiple hours after application. You would have to practice it again within seven days for it to be effective. 

You can use this formulation on any residential or business lawns, recreational areas, and golf carts. In reality, you could use it on any noncrop areas.

But it is not endorsed for areas in which it can run right into the waterway or around any flower that produces any culmination or vegetables.

  • Effective for every type of lawnsnIt can destroy a colony within 1 to 3 daysnEasy to use
  • It is sensitive to moisture and humidity

9. Spectracide 53236 Fire Ant killer Mound Destroyer Granules

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Spectracide mound destroyer work speedy to not eradicate the fire ant colony, but also kill off the queen.

The granules are ready to pour, and it may effortlessly be implemented over and cross the mound.

The granules are formulated to paintings deep into the ground and are starting to paint a rely of minutes.

This stops the colony in its track after it limits the formation of any new mounds.

This formula is very simple to apply. Simply sprinkle over the mound and inside place across the mound, and then lightly water the location to get it moist.

It is pleasant to apply this within the morning or evening, as that is when the hearth ants are maximum active.

This product is safe for pets and most of the people, but only after it has dried. Make sure to reveal the place until the granules have grown to be dried. It is toxic to fish and different aquatic animals.

Spectracidae is available in two unique sizes and it is far less costly and notably reviewed.

  • Easy to usenEffective for multiple types of pestsnPets and humans can return to the yard after its application
  • Can not be used in vegetable field nIt is not ideal to use with fire ants

10. Cutter Backyard Bug Control Spray

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If you are searching outdoors ant killer that works on extra just ants, then the Cutter Backyard Bug Control spray is the one you need.

This complete bug-killing spray works on ants, fleas mosquito and a wide variety of other demanding insects.

This bottle can be without difficulty attached to your lawn hose for powerful spraying and automatic dilution.

This fast-acting and effective out of doors ant killer promises safety for up to four weeks, even if it is rained on.

Liquid ant killer spray count 32 oz. bottle. One bottle covers up to as much as 5000 square feet.

  • Last as much as 4 weeks nEasy to applyn Larg bottle
  • Dangerous for non-target animals

An overview of Insect Life

Ants are insects. They belong to the order Hymenoptera of family Formicidae. Ants usually live in colonies because they have social behavior.

They have various castes in their colonies like soldier ants and workers. Ants colonies have fertile males which are known as drones and females are called queens.

Females are wingless. Insects are harmless until they cause damage to your goods then they are called pests when they cause economic damage.

Ants like other insects have many reasons for their creation. When ants enter your lawn or in your backyard then they cause serious problems and damage to your lawn.

Because they form colonies in your lawn and start damaging your land.
Before we go to control these ants we should know what they look like and about their life cycle.

Because when we know the complete behavior of these ants then it will be easy to control them.

How do they look like?

Ants have 3 body segments like all other bugs. The first segment of the body is the head 2nd one is thorax and the last one is the abdomen.

Ants are distinguished from other insects in their appearance. They have elbowed antennae, plural glands and a sturdy structure in their 2nd stomach section forming into a node-like a petiole.

The head, mesosoma, and metastoma are the three awesome body segmentation of ants.

Ants have an exoskeleton, an outside covering that offers a shield casing around the frame and a place for the attachment of the muscles. Insects no longer have lungs, oxygen and other gasses. 

They have their own respiratory system. Their respiratory system mainly consists of spiracles.

The insect also lacks close blood vessels. Instead, they have long and thin perforated tubes alongside the pinnacle of the frame.

These tubes function like heart and pump hemolymph closer to the head and movement of the internal fluids.

Their nervous system includes a ventral cord that runs the period and with numerous ganglia.


Head is the home window to the world, Ant heads are picked with the whole things ants want to take into their environments.

The head of the ant has an antenna as a sensory organ and compound eyes for the detection of light, color, and shadow. These eyes are made of various tiny interconnected lenses.

They have a mouth for tasting and brain for decision making, in mouthparts they have mandibles for chewing purposes.


Thorax is responsible for movement because thorax has organs like wings and legs which are specialized for ant movement.

Ants have 3 pairs of legs and some ants also have wings. Female ants are wingless.

Thorax of insects is a bridge between the head and the abdomen. Ants thorax is very thin. Worker ants usually have 6 legs while male and queen have two pairs of wings.


The abdomen is an insect body part in which all actions occur. It holds almost all the foremost organs.

Ant complete digestive packed into this body part. They also have chemical emitting glands, stingers, trail makers, reproductive systems and fat storage.

Many ants species have a unique belly of their abdomen that usually doesn’t digest food. They use it as a backpack to carry food back to their nests. 

In abdomen ants, the petiole is that a skinny section between the thorax and large fat bottom which is often known as gaster.

It gives them a large waist and allows them to be flexible when they pass around.

The Ant life stages

Like other insects, ants development also completes in four stages: a tiny egg, worm-like larvae, pupae, and an adult.


For maximum species of insects, the queen lays eggs that emerge as workers. Ants eggs have creamy color, when queen fertilized the egg worker hatch and when they don’t then males hatch.

Sometimes a colony simply getting started as queen lays eggs as referred to trophic eggs. Occasionally, workers also lay eggs however, the queen is responsible for the maintenance of the colony.


The most effective time when an ant grows is in the larval time stage. Most larvae look like wrinkly grains of rice or stout little maggots.

Fat pearlescent white tubes with plump folds and wormy mouths, ant larvae are the nuggets of the insect world.

When a colony is under attack these little chubs are normally first to go. Larvae do not have legs and they can not run away. They make smooth meals for anybody able to interpret the nest.

When workers supply special meals at simply the night time,  their body chemistry modifications and they develop into the queens. As larvae grow, their skin receives tight on their bodies.


When larvae develop enough, they quit consuming meals and get still. Some ants will spin a silken cocoon round themselves to have little privacy and others will allow it all grasp out.

In the pupal stage, they seem to like doing nothing but their bodies are converting and moving around. They are developing legs and frame segments, antennae and new mouthparts.


After the pupal stage, they are becoming the ants we understand. They squeeze out in their closing skins, emerging as full-grown ants.

Their skins darken and harden, their step becomes assured and they start their painting as adults. They vary in color from red to black. Most ants are black in color, some are red.

best ant killers

Types of Ant Killer

There are two distinct types of ant killers, baits and sprays. Both work in a bit different way and have exclusive goals. This is why many professionals use an aggregate of two for mainly high infestations.


The goal of a twig remedy is to kill the ant as soon as possible because it makes contact. These treatments are for a broader utility and are typically effective on a wide range of insects, from ants to cockroaches to termites.

Another key function of sprays is that they may be powerful for a miles longer period than bait. In fact, it can last up to 3 months. They also less expensive than baits and can cost significantly less amount. 

It is a little bit less complicated to get the spray into the right location. For example, if they continuously scavenging around the rubbish cans, that is a good place to spray.

The drawback is that spray only deals with those ants which are outside from the mounds.

Even spraying near the mound doesn’t guarantee that you will wipe out the complete colony because you need to get the queen inside the mound.


Baits works in another way than killer spray due ti fact it is meant to be taken lower back to the nests to get the queen.

On difference among bait and spray bait is only powerful for a short amount of time.

The longer it sits out within the sun and rain, the greater it breaks down and the effectiveness reduces. Baits are usually powerful on ants and works on only a few ant species.

Bait is meant to lure the ants to it by means of performing like good tasting meals. One cause why bait can be a bit hard to apply is that there many other attractive things for the ants to eat.

The one major advantage to ant baits is that they are supposed to be taken the bait to the queen and designed to infect the entire colonies. How effective they depend on a few elements which we discuss later.

How Doest ant baits work

While any sprays work with the aid of right away poisoning and killing the ant, baits have an extra long term intention and work apiece otherwise.

Ants and different insects that stay in big colonies have employees and scavengers who exit and search for food to deliver returned to the mound or nest.

Bait take benefit of this to cast off the entire colony. The fatal component in ant bait does not kill them immediately.

The worker eats some of the bait and takes the relaxation lower back to the nest where the complete colony eats it. Eventually, this may kill all of the ants, even the queen.

Killing the queen is crucial in order that the colony doesn’t reappear.
One of the matters to consider bait is that it takes time to work.

The ants should get it again to the nest and all of the different antae have to eat it so do not count on the entire colony to be destroyed overnight.

How to use ant bait?

Here is a pleasant manner to apply ant bait to make sure you get a better result.

  • Spend some time looking for the ants to find their trails.
  • Check the trails every day and reapply the bait while it is far gone.
  • Keep putting the bait along every trail until you forestall seeing ants there.
  • Once the ants have started taking the bait, wait. It can take a few weeks for a colony to be wiped out.      

Here are some helpful tips to ensure you have an excellent chance of the bait being successful.

  1. Use bait stations if needed to guard the bait from inclement weather.
  2. For first-rate results, bait needs to be applied in temperature about 70 and much less than 90 tiers F.
  3. If the temperature is too hot, do not forget laying bait within the evening, as that when the ant can be scavenging for meals.
  4. Do not use any sort of repellent close to the bait.
  5. Avoid the bait application in the morning due to dew at the grass.
  6. Discard any unused bait after 6 months because ants will no longer be attracted to it.
  7. Remove any other assets of meals, including things like trashcans and pet meals. 

Is ant bait safe for Pets?

The quantity of poison in ant bait has not fatal household pets, there are some dangers to be aware of. Many of the merchandise comes in large containers. 

While a few sprinkles may not have an effect on your pets, moving into the container could be disastrous.

If you are concerned about your pet’s safety while using outdoors ant bait.The first-class factor to do maintain them away from the area until the infestation has been taken care of.

This could mean retaining cats within the house or taking walks your dog in place of letting it run around the backyard.

>>>>>>. Best Fungicides for lawn


If you have been heading off your backyard due to nasty infestation. The easiest way to take back what is yours is to apply the right ant killer for control measures.

By taking the time to find out the kind of ant you are dealing with, you could choose the product with a purpose to be the most effective.

You should have not forgotten about the proper environment.

If you live somewhere wherein it is particularly wet or hot you may need to be greater conscious.

One aspect is for certain, with the right ant killer and a little patience, your lawn will be ant-free.

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