Carpenter Ants: The Rising Problem of these Unwelcome Guests in Brisbane Homes

Brisbane homeowners deal with a wide range of pests, but one insect that is increasingly appearing in roof voids and timber structures is the carpenter ant.

While they are often mistaken for termites, carpenter ants behave very differently. Instead of eating wood, they excavate damp timber to create nesting galleries — which can still lead to structural problems if left untreated.

What are Carpenter Ants?

Carpenter ants, scientifically named Camponotus, are a large ant species found across Australia. They can be distinguished from other ants by their size (they are considerably larger than other common ants), and their dark, reddish-brown to black colour. Carpenter ants are named as such for their habit of nesting in wooden structures, as they prefer to carve their nests into damp or rotting wood.

Carpenter Ants vs. Termites

Though they share similar habits, it is vital to distinguish carpenter ants from termites. Termites are far more destructive, as they consume wood for sustenance, causing severe structural damage. Carpenter ants, on the other hand, do not eat wood; they merely excavate it to create their nests. Nevertheless, a carpenter ant infestation can still cause substantial damage, particularly in older buildings or areas with water-damaged wood.

If you are unsure what signs to look for, our guide to termite inspections in Brisbane explains how professionals identify hidden timber pests.

Why are Carpenter Ants a Problem in Brisbane?

In Brisbane, there are two primary reasons why carpenter ants have become such a troubling issue: conducive climate conditions and urbanization.

Climate Conditions: Brisbane is known for its subtropical climate, regularly encountering heavy rainfall and periods of high humidity. This dampness increases the likelihood of wood becoming susceptible to moisture and decay, providing an ideal nesting environment for carpenter ants.

Urbanization: As Brisbane continues to grow and expand, more and more homes are being built, often in close proximity to natural habitats like forests and parks. This encroachment leads to a higher likelihood of carpenter ants finding their way to human-made structures and nesting in moist, decaying wood.

The Combination of Factors: The combination of Brisbane's climate and constant urban development creates a perfect storm for carpenter ant infestations. The moist conditions increase the likelihood of damp and rotting wood in and around homes and businesses, while urbanization constantly offers new nesting opportunities for these industrious insects.

Potential Damage Caused by Carpenter Ants

Though they may be less destructive than termites, carpenter ants can still cause significant issues for homeowners and business owners in Brisbane. Large colonies may weaken wooden structures, and carpenter ants can infiltrate and damage items such as garden

sheds, decks, and window frames. Furthermore, their presence can be unsettling and unhygienic, as they are known to scavenge for food and leave behind trails of sawdust-like debris from their excavation activities.

Signs of Carpenter Ant Activity

• Large black or reddish ants appearing inside the home

• Fine sawdust-like material (frass) near timber

• Rustling sounds inside walls or roof voids

• Increased ant activity at night

How to Prevent Carpenter Ant Problems

A few simple steps around your property can help prevent carpenter ants from nesting in timber structures.

• Repair leaking roofs, gutters and plumbing that may create damp timber

• Keep timber structures sealed and well maintained

• Trim vegetation away from exterior walls and roofs

• Avoid timber structures directly contacting soil

• Inspect roof voids and subfloors if ant activity appears

• Carpenter ants are mostly nocturnal, so you may need to inspect after dark using a flashlight.

If you suspect carpenter ants are nesting inside timber structures, a professional inspection can identify the problem before structural damage develops.

Results Termite & Pest Control Services provides inspections and pest control services across Brisbane and surrounding suburbs

Call Results Home Services now at Ph 3823 2500 and schedule an inspection today!

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