Updated: July 1, 2023

The Peace Lily, scientifically known as Spathiphyllum, is a popular houseplant that is loved for its beautiful foliage and elegant white flowers. However, like any other plant, it is susceptible to pests. One common pest that can infest Peace Lilies is scales. Scales are small, oval-shaped insects that attach themselves to the stems and leaves of plants, sucking out sap and causing damage. If left untreated, scales can weaken the plant and even lead to its death. In this article, we will discuss how to get rid of scales on a Peace Lily plant.

Identifying Scales

Before we dive into the methods of eliminating scales from your Peace Lily, it is important to first correctly identify them. Scales are tiny insects that usually appear as raised bumps or small brown or black spots on the stems and leaves of the plant. They can also have a waxy or shell-like covering, which makes them difficult to remove. If you notice these symptoms on your Peace Lily, it is likely that you have a scale infestation.

Natural Methods of Control

When dealing with scale infestations on your Peace Lily, it is always best to start with natural methods of control before resorting to chemical treatments. Here are some effective natural solutions:

1. Manual Removal

The first step in controlling scales is to manually remove as many of them as possible. Use a soft brush or cloth dipped in rubbing alcohol to gently rub off the scales from the affected parts of the plant. Be sure to check both sides of the leaves and all the nooks and crannies where scales might be hiding.

2. Neem Oil Spray

Neem oil is a natural insecticide that can effectively control scales on Peace Lilies without harming the plant. Mix one teaspoon of neem oil with one quart of water and spray the solution onto the affected parts of the plant. Repeat this process every week until the scales are gone.

3. Horticultural Oil Spray

Horticultural oil, also known as dormant oil, is another effective natural remedy for scales. Mix two tablespoons of horticultural oil with one quart of water and spray it onto the Peace Lily, making sure to thoroughly coat all the infected areas. The oil works by suffocating the scales and their eggs. Repeat this treatment every two weeks until the scales disappear.

4. Insecticidal Soap

Insecticidal soap is a safe and natural option for controlling scales on Peace Lilies. Mix one tablespoon of liquid dish soap with one quart of water and spray it onto the affected parts of the plant. The soap will suffocate the scales and prevent them from feeding on the plant. Repeat this treatment every week until the scales are eliminated.

Chemical Treatments

If natural methods do not provide satisfactory results or if the scale infestation is severe, you may need to resort to chemical treatments. It is important to follow the instructions on the label carefully and take necessary precautions when using chemical pesticides.

1. Systemic Insecticides

Systemic insecticides are absorbed by the plant and transported throughout its tissues, making them an effective way to control scales. Follow the instructions on the product carefully and apply the insecticide directly to the soil around the Peace Lily. The plant will absorb the insecticide through its roots, providing long-lasting protection against scales.

2. Contact Insecticides

Contact insecticides work by directly killing scales upon contact. They can be sprayed onto the affected parts of the Peace Lily, ensuring thorough coverage of all infested areas. However, be cautious when using contact insecticides as they can also harm beneficial insects.

Prevention Tips

Preventing scale infestations is always better than dealing with them after they occur. Here are some prevention tips to keep your Peace Lily healthy and scale-free:

  • Regularly inspect your plants for signs of pests, including scales.
  • Isolate any new plants for a few weeks to ensure they are not carrying any pests.
  • Maintain proper hygiene by removing dead leaves and debris from the plant’s surroundings.
  • Avoid overwatering, as damp conditions can attract pests.
  • Provide adequate air circulation around your Peace Lily to prevent the spread of pests.

In conclusion, scales can be a nuisance for Peace Lily owners, but with the right approach, they can be effectively controlled and eliminated. Start with natural methods of control and only resort to chemicals if necessary. By taking preventive measures, you can enjoy a healthy and thriving Peace Lily plant free from scales.