Updated: July 13, 2023

Introduction

Pothos plants, also known as Pothos aureus or devil’s ivy, are popular houseplants known for their trailing vines and beautiful heart-shaped leaves. However, like any other plant, they can be susceptible to insect infestations. One common pest that can affect pothos plants is scales.

Scales are small, oval-shaped insects that attach themselves to the leaves and stems of plants, sucking out the sap and damaging the plant in the process. They can be difficult to detect due to their small size and ability to camouflage themselves. If left untreated, a scale infestation can weaken the plant and eventually lead to its death. In this article, we will discuss effective methods to get rid of scales on pothos plants.

Identifying Scales

Before we delve into the methods of scale control, it is important to be able to identify scales on your pothos plant. Scales can vary in color and size depending on the species, but they typically appear as small, round or oval bumps on the leaves or stems. They may also have a waxy or sticky covering that gives them a shiny or glossy appearance.

To confirm if your plant has a scale infestation, gently scrape off one of the bumps with your fingernail. If you see a small, oval-shaped insect underneath that is unable to move quickly, it is most likely a scale insect.

Natural Remedies

When it comes to treating scale infestations on pothos plants, many gardeners prefer using natural remedies as a safe and environmentally friendly option. Here are some effective natural methods to get rid of scales:

1. Neem Oil

Neem oil is a natural insecticide derived from the neem tree that is known for its pesticidal properties. It works by suffocating and disrupting the life cycle of scales. To use neem oil, mix it with water according to the instructions on the product label and spray it onto the affected parts of the plant. Repeat this process every week until the scales are gone.

2. Rubbing Alcohol

Rubbing alcohol is another effective natural remedy for scales. Dilute rubbing alcohol with water in a 1:1 ratio and apply it directly to the scales using a cotton swab or a soft cloth. The alcohol will dissolve the waxy protective coating of the scales, ultimately killing them. However, be cautious when applying rubbing alcohol to ensure it does not damage the leaves or stems of your pothos plant.

3. Horticultural Oil

Horticultural oil is a lightweight oil that is specifically formulated to suffocate and kill insects like scales. It is available in most garden centers and can be safely used on pothos plants. Dilute the horticultural oil with water according to the instructions on the product label and spray it onto the affected areas of your plant. Repeat this process every two weeks until all signs of scales are gone.

Chemical Solutions

If natural remedies do not seem to be effective in controlling the scale infestation on your pothos plant, you may need to resort to chemical solutions. It is important to note that chemical insecticides should always be used as a last resort and with caution, as they can harm beneficial insects and can be toxic if misused. Here are a few options to consider:

1. Systemic Insecticides

Systemic insecticides are absorbed by the plant through its roots or leaves and circulate within its vascular system, making them effective against scales that feed on sap. These insecticides are available in liquid form and can be applied to the soil around the base of the plant or sprayed onto the leaves. Follow the instructions on the product label for proper dosage and application.

2. Contact Insecticides

Contact insecticides are designed to kill insects upon contact. They can be applied directly to the scales using a sprayer or a cotton swab. However, it is important to note that contact insecticides may not be as effective against scales due to their waxy protective covering. Always follow the instructions on the product label and use caution when handling these chemicals.

Prevention is Key

To prevent future scale infestations on your pothos plants, it is important to practice good plant care and maintain a healthy growing environment. Here are some preventive measures you can take:

  • Regularly inspect your plants for signs of pests, including scales.
  • Quarantine new plants before placing them near existing ones to prevent the spread of pests.
  • Keep your plants well-watered and ensure proper drainage to avoid creating a favorable environment for pests.
  • Avoid over-fertilizing your plants, as this can attract pests.
  • Prune and remove any heavily infested plant parts to prevent the spread of scales.

Conclusion

Scales can be a nuisance for pothos plant owners, but with the right techniques, they can be effectively controlled and eliminated. Whether you choose natural remedies or chemical solutions, always prioritize the health and safety of your plants. By practicing good plant care and taking preventive measures, you can help keep your pothos plants free from scales and other harmful pests.