Understanding Ants in our Environment

Ants are social insects that live in structured colonies with workers, queens and specialised roles. Only a small number of the more than 4,000 Australian ant species are considered household pests, but those that do invade can be persistent. They're attracted by food, water, warmth and shelter, especially in kitchens and bathrooms. 

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While ants don't usually damage timber like termites, they can contaminate food, attract other pests and create nuisance trails around your home.

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Signs You Might Have an Ant Infestation:

​Watch for these common indicators:​​

• Visible trails of ants - long lines of ants moving between food and water sources are a classic sign.

• Ants foraging in kitchens, bathrooms or laundry - Especially near sinks or food prep areas.

• Ants around food containers or bins - Particularly sweet foods or pet bowls.

• Small soil mounds outside - These can be nest entrances near your home.

• Ants near gaps, cracks or door frames: these are common entry points into buildings.

• Recurring ant sightings even after cleaning. If ants keep returning, a nest is likely nearby.

Why ants keep coming back

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Ants communicate and navigate using chemical scent trails (pheromones) they leave behind. Other ants follow the trail to food or water sources, which is why you might see them in steady lines or clusters.

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Because colonies can number in the thousands, simply killing a few ants you see doesn't solve the problem. It only removes the workers, not the colony. The colony is often hidden inside walls, gardens or under flooring, so ants reappear unless the source is addressed. 

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​Practical Tips to Reduce Ant Activity:

Eliminate food sources

• Wipe benches and floors daily to remove crumbs and spills.

• Store all food (especially sweets) in airtight containers.

• Keep bins tightly closed and empty them regularly.

Remove water attractions

• Fix leaking taps and pipes quickly.

• Keep laundry and bathrooms dry.

Seal entry points

• Caulk cracks and gaps around windows, doors and foundations.

• Fit weather-stripping where ants may be entering.

Natural deterrents

• Sprays made with vinegar or lemon juice disrupt scent trails.

• Peppermint oil or citrus peels around possible entry points can also help.

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TIP: 

While DIY methods can reduce ant sightings, they aren't guaranteed to eliminate colonies on their own - especially if ants are nesting within walls or under slabs.