Are ants pestering you in and around your home? With summer and the warmer weather, populations of ant nests rise and they become more active. Ants are often found invading our kitchens or marching across our decks in search of food, our food; the sandwich we innocently left on the breakfast bar or the glass of coke on the barbecue. With a little effort and some products found in good hardware stores there are ways to get rid of these pests and keep them away.

Finding The Source

Begin by taking a good look around the inside and outside of your house. Make a note of where you see ants. If you find trails of ants follow the ants that are carrying food; they will lead you to the entrances of nest sites. Mark the entrances so that they can be treated later.

Do not spray the nests with insecticide yet! Spraying the nest with insecticide will only serve to spread your problem. The ants will often just move to another site. If the colony is a multi-queen species this will mean multiple new nests.

To make it easier to see the ants carrying food you can sprinkle fine bread crumbs on their trail. Most often the nest is outside in sandy soil under paving stones or in cracks and crevices. Nests are usually on the sunny warm side of the house. Ants like warm dry nest sites.


Your first treatment should be using ant bait which can be found from Kiwicare. Place the bait everywhere ants have been seen travelling. The more bait points you set the more bait will be taken back to the nest and faster more effective control will be achieved. Use either Ant Bait Stations, or place bait in clean containers such as bottle tops. The worker ants collect this bait and take it back to their nest where they feed it to the queens and larvae.

Ants change their feeding habits depending on the needs of the colony; sometimes preferring sweet sugary bait and sometimes they want more protein. Kiwicare liquid ant bait is sugar based and the gel bait has a high level of protein. If you notice the ants are not feeding on one type of bait, change it for the other type.

Replenish the bait regularly so that there is always fresh bait for the ants. Continue until very few or no ants are seen feeding on the bait. This may take up to two weeks in heavily infested areas.

Now you can spray the interior surfaces with residual deltamethrin or permethrin insecticide available from Kiwicare. Ants that walk over this insecticide surface spray will be killed, but trailing ants detect insecticide and will avoid it, so it acts as a barrier. If ants have been seen in the roof void use a bug bomb to treat this area.

Keep Them Out

Now put a barrier around your house to stop the ants from your neighbour’s taking the place of those you have removed. Sprinkle insecticide granules on the surface of flowerbeds and gravel or sandy areas around the house and water in. These products slowly release a ‘curtain’ of insecticide into the ground which acts as a barrier to ants that would burrow their way into your house. Also brush Kiwicare No Ants Sand into cracks and crevices to deny ants these spaces as new nest sites.

Spray or paint deltamethrin or permethrin residual surface spray around the base of the walls of your house and possible entry points such as doors, window frames, vents, downpipes etc. This will act as a surface barrier to prevent ants and other crawling insects getting into the house.

For areas where it is preferred that insecticides are not used Kiwicare produces an Organis NO Insects Barrier which does not kill ants but will stop them travelling where it is used.

Now deal with the nests. Sprinkle the slow release granules such as NO Ants Outside or NO Insects Lawngard Prills where nest entrances have been identified and water in. Routinely maintain these barrier treatments and you will remain free from ant problems in your home.

This treatment regime will control the pest ant species found in New Zealand. There are however some interesting differences between the species and how best to deal with each of them. I will discuss this in subsequent articles. Have a wonderful ant free summer.

Article Brought To You By Kiwicare  kiwicare

Kiwicare is New Zealand’s own manufacturer and distributor of pest control, garden care and home maintenance products. The Kiwicare website contains advice on the eradication and prevention of all sorts of pests that bother us in New Zealand. Learn how to get rid of rats and mice, flies, spiders, ants, cockroaches, fleas, bed bugs and other creepy crawlies. Protect your plants from aphids, grass grub, caterpillars, weeds and more. Keep biting insects at bay with the Safari range of insect repellents. See the BioGro certified organic range of products to help you stay pest free without chemicals.

How To Get Rid of Ants & Keep Them Out, 5.0 out of 5 based on 82 ratings



  1. The Rock says:

    I’m off to give this a crack now before the ants try to mount an assault on our house! Thanks Dave!!

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    Rating: 5.0/5 (5 votes cast)
  2. williams says:

    Hopefully this will work I’m sick of seeing ants around the place.!!!!!!

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    Rating: 5.0/5 (4 votes cast)
  3. John O'Connell says:

    After spending $300 plus on Kiwicare Ant kill products I found them to be infective to control Argentine Ants.

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    Rating: 3.0/5 (3 votes cast)
  4. Hi John,

    Thanks for prompting me to clarify the treatment of Argentine Ants. I will write a seperate article on them as soon as I get the chance. they are a special case.

    Contact me or send me your details to
    Send Mail
    and I can perhaps help you solve your Argentine Ant infestation.

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    Rating: 4.0/5 (4 votes cast)
  5. Trish says:

    Thanks I will try this as I am sick of the ants they are everywhere. Climbing up the walls around the doorways all over the outside garbage bins, we wash them weekly sometimes more often but they still come back and cover the lids.
    I hope that this works!!!

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    Rating: 5.0/5 (2 votes cast)
  6. bab5nutz says:

    Is this stuff harmful to pets, such as cats?

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    Rating: 3.0/5 (1 vote cast)
  7. The Kiwicare website has a great new look and many new features including interactive problem solvers for home pests and garden pests, diseases and health.
    You may find some of the links in this article try and take you to the page that no longer exists. The error page however will tell you go to the home page and you will easily find the new page on the subject you seek.

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