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How to Get Rid of Lerps on Geranium Plant

Updated: April 4, 2022

If you’re a gardener, you may have come across the problem of lerp infestation on your geranium plant. Lerps are small, scale-like insects that feed on the sap of plants. They create a protective covering over themselves with a waxy substance, making them difficult to get rid of. However, there are ways to control and eliminate lerps on your geraniums.

What are Lerps?

Lerps are small, flat, oval-shaped insects that suck the sap from plants. They secrete a white, waxy substance that covers their bodies and protects them from predators and insecticides. They feed on the underside of leaves and can cause yellowing and wilting of the affected leaves. Lerps can also attract ants and other insects that feed on their honeydew secretion.

Signs of Lerp Infestation

The first sign of lerp infestation is the appearance of small, white, waxy bumps on the underside of leaves. As the infestation grows, the leaves may turn yellow and eventually wilt. You may also notice ants crawling around the plant, attracted by the honeydew secretion.

How to Control Lerps

  1. Pruning: If you notice only a few leaves affected by lerps, you can prune them off and dispose of them properly. This will prevent the infestation from spreading to other parts of the plant.

  2. Natural Predators: There are natural predators such as ladybugs and lacewings that feed on lerps. You can introduce these insects to your garden to control lerp populations.

  3. Insecticidal Soap: Insecticidal soap is an effective way to control lerps. It works by dissolving the waxy covering that protects lerps and exposing them to dehydration. Apply insecticidal soap according to instructions on the label.

  4. Horticultural Oil: Horticultural oil is another effective way to control lerps. It works by suffocating the insects and their eggs. Apply horticultural oil according to instructions on the label.

  5. Neem Oil: Neem oil is a natural insecticide that can be used to control lerps. It works by disrupting the feeding and reproductive systems of insects. Apply neem oil according to instructions on the label.

Preventing Lerp Infestation

The best way to deal with lerp infestation is to prevent it from happening in the first place. Here are some ways to prevent lerp infestation on your geranium plant:

  1. Inspect Plants: Inspect new plants before bringing them home. Look for signs of pest infestation, including lerps.

  2. Cleanliness: Keep your garden clean and free of debris. This will reduce hiding places for insects.

  3. Pruning: Prune dead or diseased branches from your plant regularly. This will prevent insect infestation and promote healthy growth.

  4. Watering: Water your plants regularly but avoid over-watering. Excess moisture can attract insects and promote fungal growth.


Can I use chemicals to control lerps?

Yes, there are chemical insecticides available that can be used to control lerps. However, these should be used as a last resort as they can harm beneficial insects and the environment.

Can I use vinegar to control lerps?

No, vinegar is not an effective way to control lerps.

How long does it take to get rid of lerps?

The time it takes to get rid of lerps depends on the severity of the infestation and the method used for control. It can take several weeks or even months to completely eliminate an infestation.

Can I prevent lerp infestation by spraying my plant with water?

No, spraying your plant with water will not prevent lerp infestation. You need to take preventive measures such as inspecting new plants and keeping your garden clean and free of debris.

In conclusion, lerp infestation on geranium plants can be a common problem for gardeners. However, by following the preventive measures and using effective control methods, you can keep lerps at bay and ensure healthy growth for your plants.