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How to Get Rid of Lerps on Coleus Plant

Updated: May 11, 2022

Coleus plants are known for their colorful leaves and easy maintenance. However, one problem that gardeners can encounter with these plants is the presence of lerps. Lerps are tiny, waxy, oval-shaped structures that are often found on the underside of coleus leaves. They are produced by sap-sucking insects called psyllids, which can cause damage to the plant if left untreated. In this article, we will discuss how to get rid of lerps on coleus plant.

Identify the Problem

Before taking any action, it is important to correctly identify the problem. Lerps are small and can be difficult to see, especially if they are located on the underside of the leaves. However, if you notice small, yellowish-brown bumps on your coleus plant’s leaves, it is likely that you have a lerp problem.

Natural Methods

There are several natural methods that you can use to get rid of lerps on coleus plant:

1. Pruning

One effective way to get rid of lerps is to prune the affected leaves. This will not only remove the lerps but also prevent the psyllids from laying more eggs on the plant.

2. Soap and Water

Another natural method is to use a mixture of soap and water to eliminate lerps. Mix one teaspoon of liquid soap with one quart of water and spray the solution onto the affected areas. The soap will help break down the waxy coating of the lerps, making them easier to remove.

3. Neem Oil

Neem oil is a natural insecticide that can be used to control psyllids and their lerps. Mix two tablespoons of neem oil with one gallon of water and spray the solution onto the affected areas. Repeat every seven days until the problem is resolved.

Chemical Methods

If natural methods are not effective, chemical methods may be necessary to get rid of lerps on coleus plant. Here are some chemical options:

1. Insecticidal Soap

Insecticidal soap is a safer alternative to traditional insecticides and can effectively control psyllids and their lerps. Apply the soap according to the manufacturer’s instructions.

2. Systemic Insecticide

Systemic insecticides are absorbed by the plant and can control psyllids and their lerps from the inside out. However, they can be harmful to beneficial insects and should be used with caution.

Prevention

Prevention is always better than cure. Here are some tips on how to prevent lerps on coleus plant:

  • Regularly inspect your plants for signs of psyllids and their lerps.
  • Keep your plants healthy by providing them with adequate water, sunlight, and nutrients.
  • Avoid over-fertilizing your plants, as this can attract psyllids.
  • Use companion planting to repel psyllids. Plants such as garlic, onions, and chives are known to deter psyllids.

FAQ

Are lerps harmful to coleus plants?

Yes, lerps can cause damage to coleus plants if left untreated.

How do I know if my coleus plant has a lerp problem?

Look for small, yellowish-brown bumps on the leaves of your coleus plant.

Can I use natural methods to get rid of lerps on coleus plant?

Yes, natural methods such as pruning, soap and water, and neem oil can be effective in eliminating lerps.

Are chemical methods safe for my coleus plant?

Chemical methods such as insecticidal soap and systemic insecticides can effectively control lerps but should be used with caution.

How can I prevent lerps on my coleus plant?

Regularly inspect your plants, keep them healthy, avoid over-fertilizing, and use companion planting to repel psyllids.