Updated: July 6, 2023

Ants can be a common problem for gardeners, especially when they invade your yarrow plants. While ants themselves may not directly harm your yarrow plant, their presence can attract other pests like aphids, which can cause damage to your plant. Additionally, ants can create unsightly ant hills and disrupt the beauty of your garden. If you’re wondering how to get rid of ants on your yarrow plant, keep reading for some effective solutions.

1. Identify the Source

The first step in getting rid of ants on your yarrow plants is to identify the source of the problem. Ants are usually attracted to plants due to the presence of honeydew, a sweet substance secreted by aphids. Ants will protect aphids from predators in exchange for honeydew. Therefore, it is essential to check your yarrow plant for any signs of aphid infestation.

Look for small, soft-bodied insects on the leaves and stems of your yarrow plant. Aphids come in various colors, including green, yellow, and black. They reproduce rapidly and can quickly colonize your plant if left unchecked.

2. Remove Aphids

To effectively get rid of ants on your yarrow plant, you need to tackle the underlying aphid problem. There are several methods you can use to remove aphids from your plant:

  • Manual Removal: If the aphid infestation is minimal, you can simply pick off the aphids by hand or use a strong stream of water to wash them away.

  • Natural Predators: Introduce natural predators such as ladybugs or lacewings to your garden. These beneficial insects feed on aphids and can help control their population.

  • Insecticidal Soap: Spray your yarrow plant with an insecticidal soap solution. This will suffocate and kill the aphids without harming your plant.

3. Create a Barrier

Once you have dealt with the aphids, it’s time to create a barrier to prevent ants from returning to your yarrow plant. Here are a few effective methods:

  • Cinnamon: Sprinkle cinnamon powder around the base of your yarrow plant. The strong scent of cinnamon disrupts the ant’s pheromone trails, making it difficult for them to find their way back to your plant.

  • Diatomaceous Earth: Sprinkle food-grade diatomaceous earth around your yarrow plant. This natural substance is made up of fossilized remains of diatoms and acts as a barrier that dehydrates and kills ants.

  • Citrus Peels: Place citrus peels, such as lemon or orange, around the base of your yarrow plant. The strong smell repels ants and keeps them away from your plant.

4. Ant Bait Stations

Another effective method to get rid of ants on your yarrow plant is by using ant bait stations. These bait stations contain a sweet liquid poison that attracts ants. The ants will carry the poison back to their colony, effectively eliminating the entire ant population.

Place the ant bait stations near the base of your yarrow plant, ensuring they are out of reach of children and pets. Monitor the bait stations regularly and replace them as needed until the ant infestation is under control.

5. Regular Maintenance

Prevention is key when it comes to keeping ants away from your yarrow plants. Regular maintenance practices can help deter ants from returning:

  • Pruning: Trim any overhanging branches or foliage that may provide access for ants onto your yarrow plants.

  • Cleanliness: Keep your garden clean and free from debris, as ants are attracted to food sources.

  • Mulching: Use mulch around your yarrow plants to create a physical barrier that ants find difficult to cross.

  • Watering: Avoid overwatering your yarrow plants, as excessive moisture can attract ants.

Conclusion

Dealing with ants on your yarrow plant can be frustrating, but with the right approach, you can effectively eliminate them and protect your plant from further damage. Remember to identify and remove aphids, create a barrier using natural deterrents, consider ant bait stations, and maintain regular garden practices to prevent future infestations. By following these steps, you can enjoy a healthy and pest-free yarrow plant in your garden.