Live to Plant

How to Get Rid of Lerps on Cassia Popcorn Plant

Updated: December 19, 2022

Cassia popcorn plants are a popular choice for gardeners because of their attractive foliage and lovely yellow flowers. However, these plants are also prone to an infestation of pests known as lerps. These small, white, scale-like insects can cause damage to the plant if not dealt with promptly. In this article, we will discuss how to identify lerps on cassia popcorn plants and how to get rid of them.

Identifying Lerps on Cassia Popcorn Plants

Lerps are small, oval-shaped insects that are about the size of a pinhead. They are white in color and often cluster together in groups. One of the most noticeable signs of a lerp infestation on cassia popcorn plants is the presence of a sticky substance on the leaves. This is caused by the insects excreting honeydew as they feed on the plant’s sap.

Another sign of a lerp infestation is the appearance of tiny, white bumps on the leaves. These bumps are actually protective coverings created by the insects as they feed. The lerps use these coverings to defend themselves from predators and environmental factors.

Getting Rid of Lerps on Cassia Popcorn Plants

There are several methods for getting rid of lerps on cassia popcorn plants. Here are some effective solutions:

1. Manual Removal

The first step in getting rid of lerps is to manually remove them from the plant. This can be done by using a soft brush or cloth to gently wipe off the white bumps on the leaves. Be sure to dispose of any insects that you remove from the plant.

2. Insecticidal Soap

Insecticidal soap is a non-toxic solution that can be used to treat lerp infestations on cassia popcorn plants. It works by disrupting the insect’s cell membranes, causing them to dehydrate and die. To use insecticidal soap, simply spray the affected areas of the plant with a solution that contains 2% potassium salts of fatty acids.

3. Neem Oil

Neem oil is another natural solution for treating lerp infestations on cassia popcorn plants. It works by disrupting the insect’s hormonal balance, preventing them from feeding and reproducing. To use neem oil, mix 1-2 tablespoons of oil with a quart of water and spray the affected areas of the plant.

4. Chemical Insecticides

Chemical insecticides should only be used as a last resort for treating lerp infestations on cassia popcorn plants. These products can be harmful to beneficial insects and can also have negative effects on the environment. If you do choose to use a chemical insecticide, be sure to follow the instructions carefully and use it only as directed.


Are lerps harmful to cassia popcorn plants?

Yes, lerps can cause damage to cassia popcorn plants if left untreated. They feed on the plant’s sap, which can weaken the plant and cause it to become more susceptible to other pests and diseases.

Can I prevent lerp infestations on my cassia popcorn plants?

Yes, there are several things you can do to prevent lerp infestations on your cassia popcorn plants. These include keeping the plant healthy and well-watered, pruning away any dead or damaged foliage, and regularly inspecting the plant for signs of pests or disease.

How often should I treat my cassia popcorn plants for lerps?

The frequency of treatment will depend on the severity of the infestation. If you notice just a few lerps on your plant, manual removal may be sufficient. However, if the infestation is widespread, you may need to treat the plant with insecticidal soap or neem oil every 7-10 days until the problem is resolved.

Can I use dish soap to make my own insecticidal soap?

No, dish soap should not be used to make insecticidal soap for treating lerp infestations on cassia popcorn plants. Dish soap contains surfactants that can harm the plant’s foliage. Instead, use a product that is specifically labeled for use as an insecticidal soap.

In conclusion, lerps can be a nuisance for cassia popcorn plant owners, but they can be dealt with effectively using the methods outlined above. By keeping your plants healthy and inspecting them regularly for signs of pests or disease, you can prevent future infestations and enjoy a beautiful and thriving garden.