Updated: July 12, 2023

Spider plants (Chlorophytum comosum) are popular houseplants known for their long, arching leaves and ability to thrive in a variety of indoor conditions. However, like any plant, spider plants can sometimes face pest problems. One common issue is the presence of lerps, small white or brown bumps that appear on the undersides of leaves. These lerps are actually the protective coverings created by tiny insects called lerp psyllids. While lerps may not pose a significant threat to the overall health of your spider plant, they can be unsightly and reduce its aesthetic appeal. If you want to get rid of lerps on your spider plant, here are some effective methods to consider.

Identification and Understanding the Lerp Psyllid

Before we delve into how to eliminate lerps, it’s important to understand the insect responsible for creating them – the lerp psyllid. Lerp psyllids are small, sap-sucking insects that belong to the family Psyllidae. These pests are commonly found on spider plants, as well as other houseplants and outdoor ornamental plants.

The lerp psyllid nymphs produce a waxy, protective covering called a lerp as they feed on the sap of plants. The lerps act as camouflage and protection against predators and environmental hazards. While the lerp psyllids themselves may not cause significant damage to your spider plant, their presence can weaken the plant by reducing its ability to photosynthesize effectively.

Natural Methods to Eliminate Lerps

If you prefer a more natural approach to pest control, there are several methods you can try to get rid of lerps on your spider plant:

1. Manual Removal

The simplest method is to manually remove the lerps from your spider plant using a soft cloth or sponge dipped in soapy water. Gently wipe the undersides of the leaves to dislodge the lerps and wash them away. This method is effective for smaller infestations but may not be practical for larger ones.

2. Pruning Infested Leaves

If the infestation is limited to a few leaves, you can prune them off to prevent the spread of lerp psyllids. Be sure to sterilize your pruning shears before and after each cut to avoid spreading any potential pests or diseases further.

3. Blast with Water

Using a strong stream of water, such as from a hose or spray bottle, can help dislodge and remove lerps from your spider plant. Direct the water towards the undersides of the leaves, where the lerps are usually found. Take care not to use excessive force that could damage the plant.

4. Neem Oil Spray

Neem oil is a natural insecticide derived from the neem tree (Azadirachta indica). It is known for its effectiveness against a wide range of pests, including lerp psyllids. Mix a few drops of neem oil with water in a spray bottle and apply it to the affected areas of your spider plant. Repeat this process every few days until the infestation subsides.

Chemical Options for Lerp Control

If natural methods fail to eliminate lerps on your spider plant, you may consider using chemical options as a last resort. However, it’s important to exercise caution when using pesticides, especially indoors, as they can be harmful to humans and pets. Always follow the instructions provided by the manufacturer and consider consulting with a professional if you are unsure.

1. Insecticidal Soap

Insecticidal soap is a low toxicity option for controlling lerp psyllids. It works by suffocating the insects upon contact. Apply insecticidal soap according to the instructions on the label, ensuring thorough coverage of the affected areas. Repeat the application as necessary.

2. Systemic Insecticides

Systemic insecticides are absorbed by the plant and transported throughout its tissues, making them effective against pests like lerp psyllids that feed on the plant’s sap. However, systemic insecticides may not be suitable for all situations, especially if you have pets or children around. If you choose to use a systemic insecticide, carefully read and follow the instructions provided by the manufacturer.

Preventing Future Infestations

Preventing future lerp infestations is key to maintaining a healthy spider plant. Here are some preventive measures to consider:

  • Regularly inspect your spider plant for signs of pests, including lerps.
  • Quarantine new plants before introducing them to your collection to prevent the spread of pests.
  • Avoid over-fertilizing your spider plant, as excessive nitrogen can attract lerp psyllids.
  • Maintain good air circulation around your plant to discourage pest infestations.
  • Keep your spider plant healthy and stress-free by providing proper watering, lighting, and nutrition.

By following these preventive measures and promptly addressing any pest issues, you can keep your spider plants thriving and free from unsightly lerps.

In conclusion, lerps on spider plants can be annoying but manageable. Whether you prefer natural or chemical methods, it’s important to act promptly to prevent further damage and ensure the health of your plant. With a little patience and diligence, you can successfully eliminate lerps and enjoy a beautiful, lerp-free spider plant in your home.