How to do it:
Seal cracks and crevices in walls and foundations. Store wood and cardboard off the ground. Keep food in airtight containers. Remove moisture sources by fixing leaks. Trim tree branches away from your home.

Result:
These steps reduce carpenter ant entry points and remove attractants, helping to protect your goods from damage.

Problem:
This method could fail if ants have already established a nest inside walls or if all entry points are not properly sealed.

How to do it:
Mix equal parts diatomaceous earth and baking soda. Sprinkle the mixture around entry points, cracks, and areas where carpenter ants are seen. Reapply after cleaning or rain.

Result:
The powder dehydrates and kills ants naturally, deterring them from entering and damaging your goods.

Problem:
If the infestation is severe or the nest is inside wood, this method may not reach the colony, allowing ants to persist.

How to do it:
Physically remove carpenter ants and block their entry points to protect your goods.

Result:

• Locate and remove visible ants and nests.
• Seal cracks, crevices, and gaps in walls, windows, and doors.
• Store goods in airtight containers.
• Trim vegetation away from structures.
• Regularly inspect and clean storage areas.

Problem:
This method may fail if hidden nests are missed or if new entry points develop, allowing ants to return.

How to do it:
Use nematodes (beneficial microscopic worms) as a biological control to target carpenter ants outdoors before they enter your home.

Result:

• Purchase nematodes from a garden center.
• Mix nematodes with water as directed.
• Apply the solution to soil around your home’s foundation, especially near ant trails or nests.
• Repeat every few weeks during warm months.

Problem:
This method may fail if nematodes do not reach deep nests, if soil dries out quickly, or if ants have already established colonies inside your home.

How to do it:
Mix boric acid powder with sugar and water to create a bait. Place the bait near carpenter ant trails and entry points. Replenish bait as needed and keep away from pets and children.

Result:
Ants carry the bait back to the nest, killing the colony and reducing damage to your goods.

Problem:
This method may fail if ants avoid the bait, if the nest is inaccessible, or if the infestation is too large for DIY control.