How Do I Get Rid of Ants Outside My House?

Have you ever left a pavlova on the table only to return to find that you’re not alone? Those uninvited guests marching across the table aren’t your mates arriving early for the party; they’re ants that have clearly missed the memo about personal space.

Reclaim your spaces and show those ants who’s actually paying the mortgage. From easy DIY solutions to warning signs for when you require professional ant extermination, we dive into everything you need to know about how to get rid of ants outside your house.

Why Should I Worry About Ants Outside?

You might think, “They’re just ants, aren’t they supposed to be outside?”. Well, noticing the first signs of ant trails around your property actually indicates much bigger problems heading your way.

Outdoor ants rarely stay outdoors. New Zealand’s most notorious species, the White-Footed and Argentine ants, are notorious boundary-crossers who see your home’s exterior walls as more of a suggestion than a barrier.

Both species love setting up shop in the most inconvenient places. White-Footed ants are particularly fond of nesting in wall cavities, under flooring, and around your home’s foundation. Then, there’s the visual nightmare of ants undermining pavement, creating holes and cracks that can turn your pristine outdoor spaces into something resembling a lunar landscape.

Outside of cosmetic issues, the excavated soil can kill grass, create uneven surfaces that are a nightmare to mow, and turn your carefully maintained garden beds into scattered dirt piles. Argentine ants, in particular, create extensive underground tunnel networks that can undermine paths, damage plant roots, and affect drainage around your property.

Unlike pests that might buzz off when the season changes, these species are in it for the long haul. White-Footed ants are active year-round and have multiple reproduction cycles, meaning their numbers can explode quickly. And for Argentine ants, their super-colony structure means that workers from destroyed nests simply relocate to other parts of the network. Plus, their colonies can contain multiple queens, meaning even if you think you’ve eliminated one nest, there are likely several others you haven’t found.

If you’re wondering “how do you kill ants outside” before they become a serious issue, you’re asking the right question. Learning how to get rid of ants outside the house isn’t just about saving your next backyard picnic; it’s also about protecting your home and wallet in the future.

DIY Solutions: How to Exterminate Ants Outside

• Ant Baits – Look for baits designed explicitly for the ant species you’re dealing with. Place baits along active trails, and worker ants will carry poison back to the colony, potentially reaching the queen. Though as Nic told Consumer NZ, in his experience baits are never enough to fully eliminate ants, because white-footed ants learn to avoid them and the workers stop collecting from them. Used well, they’ll knock the numbers back for a while, but the colony usually recovers.

• Outdoor Ant Sprays – Residual sprays can create barriers around your home’s perimeter. However, this approach is only effective if the ants aren’t already living inside your walls.Apply around foundations, doorways, and windows, taking care to reapply as needed, depending on the label. Treating window and door frames will help keep ants outside of your living space, but won’t eliminate established ant colonies. You cannot treat in-ground nest entrances directly with residual sprays.
• Granular Treatments – These tiny time-release insecticide capsules are particularly effective for larger outdoor areas with multiple ant mounds or widespread activity. Ants pick up active insecticide ingredients on their bodies and carry them back to their colonies, killing them either through direct contact or when consumed.

When Do You Need a Professional Ant Exterminator?

There comes a point when your weekend warrior approach to ant control stops being cost-effective and starts becoming a very expensive hobby. Here are the clear signs that it’s time to call in the experts to get rid of ants outside the house.

Red Flags:

• You’re seeing multiple ant species on your property (different ants need completely different treatment approaches).
• Ants keep appearing in new locations despite your best DIY efforts.
• Ants are congregating around your home’s foundation, especially around utility entries, cracks, or damp areas.
• Argentine ants have formed super-colonies that stretch across your property and into neighbours’ sections.
• White-Footed ants keep bouncing between indoor and outdoor areas, no matter what barriers you create.

The ‘Groundhog Day’ Problem

The biggest clue that you need professional pest control solutions is when your treatments only provide temporary relief. If you spray and notice that ants disappear for a week before reappearing in even greater numbers, you’re only hitting worker ants while queens and main colonies remain safely hidden and actively reproducing.

The Economics Test

If you’ve already spent more on DIY products than a professional treatment would cost, you’re paying premium prices for amateur results.

Every day you delay proper treatment is another day these industrious little invaders are expanding their territory. What starts as a few ant trails around your BBQ area can quickly escalate into multiple colonies undermining your landscaping and threatening your home’s perimeter.

If you’re wondering, “How do I get rid of ants outside my house?”, it’s time to work with residential pest control specialists who understand ant behaviour, identify species correctly, and eliminate problems efficiently rather than managing them indefinitely on your own.

Take the Domin-Ant Position in Your Battle

Dealing with ants outside your house doesn’t have to turn into a never-ending battle that empties your wallet. While DIY solutions can work for minor problems, persistent ant infestations, especially those involving Argentine and White-Footed ants, require a strategic approach to exterminate ants outside effectively – targeting entire colony networks, not just the workers you can see.

Combat Pest Control can help you reclaim your outdoor spaces from unwanted six-legged squatters. Book your professional ant treatment online today.