Ant bait is not safe for a pet to eat. It is a poison made to kill insects, so no bait is harmless if a dog or cat swallows it. What makes ant bait safer in a home with pets is the type of bait, where you put it and how you store the pack. The label is your best guide, because Australian rules set what it must say.
What the label tells you
The APVMA label content code sets the warning word at the top of the pack. The APVMA (Australian Pesticides and Veterinary Medicines Authority) is the national regulator. CAUTION marks a Schedule 5 poison. POISON marks a Schedule 6 poison. DANGEROUS POISON marks Schedule 7. The APVMA rules for home garden and domestic products say Schedule 7 products are too toxic for householders and cannot be sold as home products. The NSW EPA guide to pesticide hazard puts it simply: "Caution" means low potential for harm, and "Dangerous Poison" means high potential. Low is not zero. KEEP OUT OF REACH OF CHILDREN is required when the product contains a scheduled poison. The label must also list each active constituent, the chemical that kills the ants, and its strength. Words like "pet friendly" on the front are not one of these set warnings, so read the back. Each label also carries an APVMA approval number, which you can look up in the APVMA's public chemical registration information system.
Why pets go for ant bait
Ant bait mixes a slow poison with food ants want, such as sugar, fat or protein. Workers carry it back and share it through the nest. That food smell can also make a curious dog lick a gel dot off the skirting board. Cats groom their paws, so a cat that walks through spilt liquid bait or wet spray can swallow some while it cleans itself. When a Greenacre kitchen trail runs along the floor right next to the dog's water bowl, there is no spot on that trail where bait would be out of the dog's reach, so book ant control in Greenacre instead of baiting beside the bowl.
Which bait types carry more risk
- Sealed bait stations. The bait sits inside a plastic case with small entry holes. This is the lowest exposure for pets, but a dog can chew the case open.
- Gel bait. Small dots are squeezed into cracks and along edges. A dot on an open surface at nose height is easy to lick.
- Liquid bait. A sweet liquid in a tray that can spill or be knocked over.
- Granules. Spread outdoors on lawns and paths, where a dog can eat them or carry them inside on its paws.
- Surface sprays. Not bait, but pets meet them too. The APVMA rules require domestic products, where it applies, to say "DO NOT spray directly on humans, pets, exposed food, food preparation areas or food utensils." The NSW EPA advises covering bird cages and fish tanks, moving other pets, and waiting until the area has dried and been aired.
Where to put bait in a home with pets
The APVMA code includes a standard label line for baits: "DO NOT place baits in locations that are accessible to domestic animals, livestock, non-target native animals or birds." If your label has that line, treat it as a rule. Put stations inside cupboards your pet cannot open, behind the fridge, or on a part of the trail behind a door your pet cannot get past. Keep gel off open floors and low skirting boards. Count the stations you set out, so you notice if one goes missing. Store the pack the way the APVMA rules describe: closed, in its original container, in a cool dry place out of reach of children. If a Panania trail only crosses the open hallway where the cat sleeps, every bait spot on it is also a cat spot, so get ant control in Panania rather than baiting the hallway.
Do not mix up ant bait and snail bait
Snail and slug baits carry a sharper warning. The APVMA rules make their labels say: "Keep away from dogs. Dogs find this bait attractive and it may kill them." A garage shelf can hold both kinds of bait. Store them apart, and if your dog was in the garden, check both packs before you call the vet.
If your pet eats ant bait 1.
Move your pet away and pick up any bait that is left.
- Keep the pack. Note the product name, the active constituent, its strength and the APVMA approval number.
- Work out roughly how much is missing and when it was eaten.
- Call your vet straight away and follow their advice instead of trying home remedies. If a child has eaten bait, the standard first aid line on Australian pesticide labels applies: "If poisoning occurs, contact a doctor or Poisons Information Centre. Phone Australia 13 11 26." A Georges Hall dog that has already chewed open one station may go back for the others on the same trail, so lift every station and book ant control in Georges Hall before setting out new bait.
When bait is the wrong tool
Bait only works if ants eat it and carry it home. A sugar bait does little against an ant that wants grease. Stations that stay full for days while the trail keeps moving mean the ants are ignoring that bait. Stations on an East Hills back step that empty every few days while the trail still runs into the wall point to a nest inside that wall, so call ant control in East Hills before buying another pack. Photograph the bait pack and the trail, and note where your pets eat and sleep, before you book pest control in Bankstown, so the technician knows what was used and where the animals spend their time.