TERRO T312CAN Liquid Ant Bait Bonus Pack
A low cost, reliable bait for common sweet eating ants; useless on carpenter ants.
The short version
- Homes with trails of small sweet eating ants in the kitchen or bathroom
- Anyone who wants to bait both inside and along the outside of the house
- People willing to wait a week or two and leave the ants alone while they feed
- You have carpenter ants, fire ants or pharaoh ants
- You cannot place the stations out of reach of children and pets
- You need the ants gone immediately
What owners like
- Clears common kitchen ant trails, often within a few days
- Cheap and simple to set out
- Reaches the colony instead of only the ants in sight
Common complaints
- Ant numbers jump for the first day or two before dropping
- The bait is sticky and can drip if a station tips
- Stations dry out and need replacing on a long infestation
- Does nothing for carpenter ants
Based on TERRO's product pages for the indoor stations and outdoor stakes, the TERRO label summary on LabelSDS, a HuffPost shopping article and a Canadian ant bait buying guide..
Research scores
Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.
Ownership
- Apr 2026
First bought.
Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.
What it does
A pack of pre-filled TERRO borax liquid ant bait stations for indoors plus an outdoor bait stake; the original T310CAN is no longer listed, so this covers the current T312CAN bonus pack.
- Pre-filled stations, ready to place where ants are seen
- Slow acting bait so workers share it with the colony and queen
- Outdoor stake goes into the ground near nests or entry points
- Indoor stations suit baseboards, under sinks, behind appliances, countertops and windowsills, per TERRO
A sensible first try for common sweet eating ants such as odorous house, pavement and Argentine ants, since the workers carry the bait back to the colony. The trade-offs are a surge of ants for the first few days, stations that need replacing as they dry out, and no effect on carpenter, fire, pharaoh or harvester ants.
How it compares
Specs
- Active ingredient
- Sodium tetraborate decahydrate (borax) 5.40%, per TERRO
- Contents
- Indoor TERRO liquid ant bait stations plus one outdoor liquid ant bait stake
- Ants listed
- Argentine, ghost, pavement, acrobat, white footed, odorous house and other common sweet eating ants
- Ants not controlled
- Fire, pharaoh, carpenter and harvester ants, per TERRO
- Signal word
- Caution, on the TERRO liquid ant bait label
- Time to control
- Up to two weeks, per TERRO
Worth knowing
- TERRO says to place the stations in areas inaccessible to children and pets.
- TERRO says not to use the indoor baits in commercial food preparation areas or where food is exposed.
- The TERRO liquid ant bait label carries the signal word Caution.
- For outdoor baits, TERRO suggests a hard to reach or hidden spot, a protective cover, and supervising pets outdoors.
Questions
Why are there more ants after putting out TERRO baits?
TERRO says a rise in ants is expected as foragers find the bait and recruit others, and that it means the bait is working.
How long does TERRO liquid ant bait take to work?
TERRO says control can take up to two weeks, replacing stations as they empty.
Does TERRO kill carpenter ants?
No. TERRO lists carpenter, fire, pharaoh and harvester ants as ants its liquid baits do not control.
What happened to the TERRO T310CAN bonus pack?
It is no longer listed. The T312CAN bonus pack, with indoor stations and a bonus outdoor stake, is the current TERRO bonus pack on the same listing.
Sources
- TERRO: Liquid Ant Baits (T300)
- TERRO: Outdoor Liquid Ant Bait Stakes (T1813)
- TERRO: Outdoor Liquid Ant Baits (T1804-6)
- LabelSDS: Terro Liquid Ant Baits label and SDS summary
- HuffPost: Terro liquid ant bait traps
- Buzzskito: Best ant traps in Canada
Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.