Pest Away Tips

5 Effective Steps for Controlling Thatching Ants in Your Home and Garden

Thatching Ants: Understanding Their Behavior and How to Control Them

As homeowners, there are many pests that we need to keep an eye out for, but one creature that we should be wary of is the thatching ant. These large ants – measuring 4-8 mm in length – are known for building large mounds in our backyards, and pose a threat to our gardens, lawns, and even our homes.

In this article, we will delve deeper into the behavior and characteristics of thatching ants, and explore the various methods of controlling these invasive insects.

Characteristics and Behaviors

Thatching ants are typically identified by their red and black colored bodies. They are known to construct large mounds in open areas like backyards, parks, and fields.

These mounds vary in size, and can reach up to 7 feet in diameter and 2 feet in height. These mounds contain intricate systems of tunnels and chambers that house the colony of ants.

However, these mounds can also pose a danger to property by undermining sidewalks, driveways, and other structures. Thatching ants typically feed on sugary substances and insects.

They are known to be aggressive predators, and can quickly overtake and kill other insects in the area. This makes them a nuisance to gardeners and homeowners alike, as they can cause significant damage to plants, flowers, and trees.

Control Methods

The first step in controlling thatching ants is to identify their nesting sites. This can typically be done by locating their mounds, which are typically found in open areas like lawns and gardens.

One effective method for controlling thatching ants is the use of ant baits. Ant baits are typically composed of a sugary substance combined with a pesticide.

The ants are attracted to the bait and take it back to their colony where it is shared with the entire nest. This can typically be done by placing the ant bait near the mound opening or along ant trails.

Another option for controlling thatching ants is the use of pesticides. Pesticides can be sprayed around the perimeter of the property or directly onto the mound.

However, it is important to follow all safety instructions, as some pesticides can be harmful to humans and pets. Natural remedies can also be used for controlling thatching ants.

Trimming backyard trees can help to reduce the amount of shade provided to the mounds, making them less attractive to the ants. Caulking crevices and cracks in the foundation of the home can also help to prevent ants from accessing the house.

Additionally, ant repellents can be used to create a barrier around the perimeter of the property, repelling the ants from the area.

Difference from Carpenter Ants

It is important to note that thatching ants are often confused with carpenter ants, which are also large and black. However, the two species have distinct differences that can be used to differentiate them from each other.

Thatching ants can be identified by a distinct “waist” in their thorax, whereas carpenter ants have a rounded thorax. Additionally, thatching ants typically build their nests outside in the open, while carpenter ants build their nests in wood, and can cause significant structural damage to homes.

In conclusion, thatching ants can be a nuisance to homeowners and gardeners alike. The first step in controlling this invasive species is to identify their nesting sites and employ the appropriate control method.

Ant baits, pesticides, natural remedies, trimming backyard trees, caulking crevices and cracks, and ant repellents are all effective methods for controlling thatching ants. By taking these steps, homeowners can protect their property and keep their yards free of these pests.

Step 1: Find and Destroy Thatch Ants Nests

If you’re dealing with thatch ants, your first step should be to locate their nests. These ants are known to construct mounds made of decayed logs, grass stems, small sticks, pine needles, leaves, and fir needles.

These nests can be up to a few feet in diameter and several inches tall, making them easy to spot. However, it’s essential to properly identify thatch ants’ nests before proceeding with control methods as other ants may look similar to thatch ants.

Once you’ve located the nests, your next step is to destroy them completely. It’s crucial to destroy the entire nest, or the ants may migrate to a new location on your property or your home.

Some homeowners may opt for using pesticides to control thatch ants’ nests. Step 2: Apply Pesticides

Ant Baits

One effective way of controlling thatch ants is to use ant baits. Ant baits are designed to mimic the ants’ natural food sources – sugary and protein-based foods.

When the ants come into contact with the bait, they carry it into the nest and share it with the rest of the colony. The bait typically contains a toxin that kills the ants slowly, allowing time for the ants within the colony to digest and distribute the bait.

There are many types of ant baits designed specifically for thatch ants. Two common types of ant baits include hydramethylnon and boric acid.

Hydramethylnon is a slow-acting toxin that kills ants slowly over time. Boric acid, on the other hand, is a natural pesticide that’s derived from boron mineral.

Boric acid is toxic to ants, and it can also be used as a deterrent against other insects.

Other Pesticides

For more severe infestations, spot treatment using residual insecticides is recommended. Residual insecticides, such as pyrethroids and pyrethrins, are sprayed in areas where ants have been seen.

These insecticides work by remaining active on these areas after application. They are toxic to ants that come into contact with them.

Pyrethrins are natural pesticides that are derived from chrysanthemums flowers. These pesticides are also toxic to ant colonies.

Boric acid is another pesticide that can be used against thatch ants. When applied to the mound, boric acid gets carried back to the colony, where it disrupts the ants’ digestive system and kills them.

Spot Treatment

It is essential to be precise when applying any pesticides to not harm surrounding plants or animals. It is recommended to apply pesticides when the ants are most active, which is typically during the morning or evening.

Always follow the manufacturer’s instructions when applying pesticides, and avoid applying pesticides to plants in bloom. Spot treatment may involve using a residual insecticide by applying the pesticide directly to the ants or mounds.

This process is also effective in controlling ants without causing harm to the surrounding environment. In conclusion, thatch ants can be a nuisance to homeowners and gardeners alike.

Identifying their nesting sites and employing the appropriate control methods will help eliminate these pests from your property. Ant baits, residual insecticides, and spot treatments are all effective methods for controlling thatch ants.

By using these strategies, homeowners can protect their properties, and keep their lawns and gardens free of these pesky insects. Its also necessary to follow safe application procedures when using chemicals, and always seek professional help when dealing with severe infestations.

Step 3: Trim Backyard Tree Branches Regularly

Backyard trees provide many benefits, including shade, a cooling effect, and food resources for wildlife. However, they can also be a source of thatching ants in the home.

Tree branches can provide thatch ants access to the roof and entry points into the home. For instance, thatch ants may forage for food on the tree branches, and then travel into the house by crawling through tree branches that overhang onto the roof.

To prevent this from happening, trimming backyard trees regularly is recommended.

Tree Branch Access Points

Thatching ants can gain access to the roof from tree branches that overhang, which can create gaps and entry points to the home. Trimming backyard trees not only reduces the ant’s access to the roof, but it also makes it less attractive for nesting in the surrounding areas.

Regular tree pruning can also help to create a barrier between tree branches and the roof or any openings that may allow thatch ants access to the home. Additionally, trees that have branches nearing the roof should be trimmed to lessen or remove the ant’s access point.

Lawn Care Maintenance

Proper lawn care maintenance can also help prevent thatch ants from becoming an issue. Regularly trimming grass and weeds can eliminate potential hiding places for ants.

Maintaining clean lawns and gardens can also discourage the ants from nesting nearby. Homeowners should also consider removing any materials that may attract thatch ants to the area.

This may include piles of lumber or firewood. Step 4: Caulk Crevices and Cracks

Thatching ants can enter homes through crevices and openings in the foundation, walls, windows, doors, pipes, and wires.

To prevent them from entering the house, caulking crevices and cracks is an effective method of control.

Ant Entry Points

It is essential to identify areas where thatch ants can enter the home. Cracks in the foundation, walls, and floors are common areas where ants can enter the house.

Additionally, windows and doors that don’t seal properly, pipes, and wires that run into the house are also common entry points for thatch ants. These entry points should be sealed to prevent the ants from entering.

Caulking Materials

Silicone-based caulk is a suitable material to use for sealing crevices and cracks. This type of caulk is moisture-resistant and durable, which makes it a long-lasting solution.

Using silicone caulk to fill small openings and caulk larger cracks can limit thatch ants’ entry into the home. Sealing all entry points will also prevent other insects and pests from entering the house.

In conclusion, prevention is key when it comes to controlling thatch ants. Trimming backyard trees regularly can eliminate the ant’s access to the roof and reduce nesting opportunities nearby.

Proper lawn care maintenance can also discourage thatch ants from nesting nearby. Caulking crevices and cracks can prevent thatch ants from entering the home.

With persistence and the use of appropriate control methods, homeowners can protect their properties’ integrity and maintain a pest-free environment. Step 5: Remove Ant Trails

Ant trails are the pheromone-scented pathways that thatch ants use to communicate and follow one another.

These trails help the ants find food sources and navigate to different locations. Eliminating these trails is an essential step in managing thatch ants.

Here are some effective methods for removing ant trails.

Scented Trails

Thatching ants follow one another by using scent trails that they lay down as they forage for food. These trails are used as a communication tool, allowing ants who remain in close contact with each other to follow one another and make their way back to food sources.

To break this communication system, it is essential to eliminate the scent trail using vinegar and water.

Vinegar and Water Mixture

A mixture of vinegar and water can help get rid of thatch ants’ trails. Equal parts of vinegar and water can be mixed and sprayed onto the trails’ path.

This helps mask the ant’s scent trails and discourages them from using the trail. Spraying vinegar and water on outdoor pathways can also act as a natural barrier and prevent ants from re-entering the area.

Natural Ant Killer Sprays

For indoor ant elimination, natural ant killer sprays can effectively remove ant trails and prevent ants from entering the house. These sprays typically contain essential oils and other natural ingredients that are toxic to ants but safe for homeowners and pets.

Spraying an ant killer spray directly onto the ant trails and around entry points can help eliminate thatch ants’ presence inside the house. What If None of These Works?

| Hire a Skilled Exterminator

For homeowners who have tried all of these control methods, but the problem persists, it may be time to hire a skilled exterminator. Exterminator services are recommended for severe infestations as they possess the expertise, equipment, and knowledge necessary for controlling aggressive ant species like thatch ants.

Exterminator Services

A skilled exterminator will visit your home and conduct a thorough inspection of your property to identify and locate the ant’s nest. They will use multiple methods for controlling the infestation, which may include the use of pesticides, ant baits, residual insecticides, and other control methods.

Exterminators ensure the safety of homeowners, preventing any harm to plants or pets during the process.

Ant Infestation Severity

The severity of the ant infestation will determine the path that the exterminator will take when controlling thatch ants. Severe infestations may require multiple control methods, and the exterminator may have to return to the property several times to ensure that the colony has been successfully eradicated.

When dealing with severe infestations, homeowners must keep in mind that regrouping, and rebuilding the nest is common in thatch ants’ behavior. In conclusion, removing thatch ants’ trails is essential for controlling their presence in your home and surrounding areas.

Vinegar and water mixture, and natural ant killer sprays could be effective in removing ant trails. If none of these control methods work, homeowners should seek assistance from skilled exterminators who will use effective control methods to eliminate thatch ants’ colonies.

Regular monitoring and prevention practices can also help prevent thatch ants from becoming established in your home and surrounding environment.

List of Sources

When dealing with thatching ants, it’s important to consult reliable sources to ensure that you are using appropriate and effective control methods. Here is a list of sources that homeowners can use to learn more about thatching ants and how to control them.

Idaho Species

If you live in Idaho or the surrounding areas, the

Idaho Species website is an excellent resource for information on thatching ants. The

Idaho Species website includes a thorough overview of thatching ants, including their habitat, feeding habits, and behavior.

Additionally, homeowners can find information on different control methods that are safe, legal, and effective in controlling thatch ants.

Department of Fish and Game


Department of Fish and Game is another reliable source for information on thatch ants. The

Department of Fish and Game provides homeowners with information on pest identification and management.

They also provide an overview of the best practices to follow when removing thatch ants, including the use of effective ant control products and methods.

Extension Services

Extension Services are offered by state universities throughout the US. These services provide homeowners with access to research-based information on a variety of topics, including pest control.

Extension Services can offer scientifically sound and proven solutions to pest control that homeowners can rely on.

Professional Exterminators

Professional exterminators are a great source of information on thatching ants as they have the expertise and knowledge to identify and control thatch ants. They can offer effective and comprehensive control methods that are appropriate for the severity of the infestation.

It is recommended that homeowners research and vet professional exterminators to ensure they are reputable and licensed.

Manufacturer Websites

Manufacturer websites like Raid, Terro, and Ortho provide tips, information, and products aimed at controlling thatch ants. These websites can offer homeowners information on the effectiveness and safety of various ant control products available on the market.

They may also provide specific instructions on how to use their products and how to select the appropriate control method for different ant species. In conclusion, reliable sources are critical for homeowners to identify and manage thatch ants.

By conducting research and seeking out information from trusted sources like

Idaho Species,

Department of Fish and Game, extension services, professional exterminators, and manufacturer websites, homeowners can take a proactive approach in preventing and treating thatch ant infestations. By employing effective and safe methods for controlling thatching ants, homeowners can maintain a pest-free environment and protect their homes from the damage that they cause.

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