The best way to get rid of ants coming from the vents or anywhere else is to avoid giving them a reason to enter your house in the first place.
Getting rid of ants in attic.
I believe the most effective way to eliminate carpenter ants is a combination program focused primarily on baiting.
Baits can be placed in an area where you have seen ant activity in the home but do not place them directly on an ant trail.
Baiting has two benefits.
Poison the ants with borax.
First foragers carry the bait back to the nests and share the food.
Fill bottle caps with the mixture.
Mix with powdered sugar in a ratio of about 1 3 sugar to 2 3 boric acid.
Ants might seem harmless but when you spot carpenter ants in your attic there should be a reason to worry.
Repeat once daily until all the ants are gone.
You will need to apply termidor sc 1 2 ft up the foundation and 1 2 ft out onto the ground around door frames window frames places where cables pipes or wires go through the wall and any other crack or crevice where the ants can gain entry into your home.
Spray an ant spray up there.
Mix one part corn syrup or any sweet sticky substance with one part borax and spread the mixture on an index card.
Carpenter ants get their name through their nest building capabilities.
The main nest is therefore the objective.
They have learned the art of excavating wood forming smooth tunnels where they build their galleries.
The microscopic razor sharp edges of de can cut through the ants exoskeletons gradually causing their body to dry out.
Boric acid penetrates the.
Gently sprinkle a thin layer of de on windowsills beneath the fridge under cabinets in and around garbage cans and any other places where you see ants.
That means cleaning floors and counters and putting food away as soon as you are finished eating.
Ants will avoid bait traps placed in this manner.
Classic insulation and pest control has helpful tips on how to get rid of nuisance ants in your bellingham mount vernon bothell or bellevue home.
Borax is a cleaning chemical that is poisonous to ants but non toxic to humans.
In this way bait can kill foragers and other worker ants.
When they return it to the nest it will kill the ants in the nest.
To ensure you have the broadest range of attractants use both carb based and protein based bait traps.
To try and kill the ants at their source make a borax bait that the ants will flock to and bring back to their nest.
Set down around the area where you observe the ants.