Agrium Advanced Technologies

FAQs

Most domestic rat and mouse poisons are anticoagulants; they affect the rodent’s blood, reducing the ability of blood to clot so that exposed rodents bleed internally and die.

In some cases you may find the carcasses in the vicinity of their nesting area however no one can guarantee that they will die in an accessible area. The use of anticoagulant baits aids carcasses to desiccate very quickly and therefore produce very little odour. Very strong odours remaining for a long period time may indicate death by some another cause than the rodenticide

The amount of rodenticide that is required to kill a mouse is quite small and rodenticides are not very toxic to larger animals. An animal would likely have to eat dozens of dead mice in a short period of time to ingest enough rodenticide to make them sick and as the carcasses dry up quickly there is very little interest in a dead mouse. It is always important to pick up carcasses immediately to avoid any possibility of secondary poisoning.

Warfarin, chlorophacinone, and diphacinone require multiple feedings over several days before a lethal dose is accumulated. It is important to provide a continuous supply of bait during this time if you are using this type of rodenticide.
Bromadiolone, Brodificoum and Difethialone are single feeding rodenticides and will kill warfarin resistant rats and mice however they may continue to feed for several days and bait supply should be continuous to ensure that all the rodents have an opportunity to feed

No, mice or rats can smell the bait through the bag and will have no problem eating through the plastic or paper bag.

It can take up to 10 days to kill the mice or rats.
Some mice have developed resistance to warfarin, switch to a single feed anticoagulant product.
Not enough bait was used. Mice and rat infestations can be quite large (usually larger that you would expect, there is rarely only one mouse or rat). Continue to refill the bait station as long as they are eating the bait as it may take some time to reduce the population.
Rodents can move pellets to another location and cache the bait. Switch to a meal, seed or block bait which will be ingested on the spot.
Clean up areas where mice and rats live and breed; remove other sources of food supply.

The rodenticide is likely killing off mice that are being replaced with new mice or you have a larger population than first suspected. Unfortunately mice will want to live in areas that are desirable to mice. If you have a large population and you are unable to control it you may want to seek the services of a pest management professional. They will eradicate the problem and will advise you on how to avoid another infestation.
To ensure that new mice are not gaining access make sure all small holes around your house foundation are sealed. Mice can fit through a ¼ inch hole. Check around pipes, wires, windows and doors.
Mice love clutter and hate open spaces. Basements, garages and storage rooms often can get fill with boxes, old furniture and stuff that mice can hide and nest in. If mice are in an area like this it must be cleaned up.
Continue to use a single feed anticoagulant bait. In addition to baiting rodent traps should be used to help knockdown the population.

Covered bait stations are not tamperproof and should not be left in the open where accessible to children and/or pets.
Purchase a lockable bait station, which can be fastened to the floor to prevent access.
There are many types of effective traps to consider instead of baits.