Updated: February 17, 2023

Catmint is a beautiful and fragrant plant that is often grown in herb gardens. Sadly, it is also a favorite of ants, which can quickly infest the plant and cause damage. Fortunately, there are several ways to get rid of ants on catmint plants.

Identify the Type of Ants

Before you start treating your catmint plant, it’s important to identify the type of ants you’re dealing with. Different species of ants have different habits, and some may be more difficult to get rid of than others. Here are some common types of ants that infest catmint plants:

  • Argentine ants: Small and light brown, these ants are attracted to sweet foods and have multiple queens.
  • Odorous house ants: These ants are small and brown-black and emit a strong odor when crushed.
  • Pavement ants: Dark brown or black in color, these ants often nest under pavement or rocks.
  • Carpenter ants: Large and black, these ants burrow into wood and can cause significant structural damage.

Natural Remedies

If you prefer natural solutions for getting rid of ants on your catmint plant, there are several options available. Here are some natural remedies you can try:

White Vinegar

Mix equal parts of white vinegar and water in a spray bottle and apply it directly to the ant trail. Vinegar disrupts the scent trails that ants use to navigate, making it harder for them to find their way back to the plant.

Baking Soda and Powdered Sugar

Mix equal parts baking soda and powdered sugar and place the mixture where you’ve seen ant activity. Ants will take the bait back to their colony, where the baking soda will react with their digestive acids and kill them.

Diatomaceous Earth

Diatomaceous earth is a naturally occurring powder made from the fossilized remains of diatoms. Sprinkle it around the base of your catmint plant to create a barrier that ants won’t cross. Diatomaceous earth is harmless to humans and pets but can be deadly to insects.

Chemical Remedies

If natural remedies aren’t effective, you may need to resort to chemical solutions. Here are some chemical remedies for getting rid of ants on catmint plants:

Insecticidal Soap

Insecticidal soap is a low-toxicity pesticide that is effective against soft-bodied insects like ants. Mix the soap according to the package instructions and spray it directly on the ants.

Ant Baits

Ant baits are a type of pesticide that contains a slow-acting poison. Ants will take the bait back to their colony, where it will kill the entire colony over time. Place the bait near the ant trail but not directly on your catmint plant.

Preventing Future Infestations

Once you’ve gotten rid of the ants on your catmint plant, it’s important to take steps to prevent future infestations. Here are some tips for preventing ants from returning:

  • Keep your catmint plant well-watered but not over-watered, as moist soil can attract ants.
  • Remove dead plant material from around your catmint plant, as this can provide a home for ants.
  • Keep your garden tidy and free of debris, as this can also provide shelter for ants.
  • Trim back nearby shrubs and trees that could provide a bridge for ants to reach your catmint plant.

By following these tips, you can help keep your catmint plant ant-free.

FAQ

What if I don’t want to use pesticides?

There are several natural remedies you can try, such as white vinegar, baking soda, and diatomaceous earth. If these don’t work, you may need to resort to chemical solutions.

Will these remedies harm my catmint plant?

No, these remedies are safe for your catmint plant. However, insecticidal soap can be harmful to bees and other pollinators, so use it with caution.

Can I use ant baits directly on my catmint plant?

No, ant baits should not be placed directly on your catmint plant. Place the bait near the ant trail instead.