Updated: July 15, 2023

How to Get Rid of Lerps on Mandarin Plant

Lerps are a common pest that can wreak havoc on your mandarin plant. These small, sap-sucking insects attach themselves to the leaves and stems of your plant, causing damage and potentially reducing fruit production. If you notice the presence of lerps on your mandarin plant, it’s important to take action promptly to prevent further infestation and protect the health of your plant. In this article, we will explore effective methods to get rid of lerps and restore the vitality of your mandarin plant.

Understanding Lerps

Before delving into treatment options, it is important to understand what lerps are and how they affect your mandarin plant. Lerps are small, scale-like insects that belong to the family Psyllidae. They are commonly found on citrus plants, including mandarin trees. These pests feed on the sap of the plant, causing discoloration, stunted growth, and leaf drop.

Lerps create a protective covering known as a lerp, which shields them from predators and pesticides. The lerp is a waxy secretion that hardens into a shell-like structure, making it difficult for conventional insecticides to reach the pests inside. This natural defense mechanism makes getting rid of lerps a challenge.

Manual Removal

One effective method for managing lerps is manual removal. Although it may seem tedious, removing lerps by hand can significantly reduce their population on your mandarin plant. To do this, gently scrape off the lerps using a soft brush or your fingers. Be careful not to damage the leaves or stems in the process.

Manual removal should be done regularly, especially during the early stages of an infestation when lerps are more concentrated. By removing the existing lerps, you disrupt their breeding cycle and prevent further damage to your plant.

Natural Predators

Introducing natural predators is another effective approach to control lerp infestations. These predators feed on the lerps, helping to keep their population in check. Ladybugs, lacewings, and predatory mites are known to be effective natural enemies of lerps.

To attract these beneficial insects to your garden, create a favorable environment by planting flowers that provide nectar and pollen. These flowers act as a food source for the predators, encouraging them to stay and help control the lerp population. Additionally, avoid using broad-spectrum insecticides that could harm these beneficial insects.

Horticultural Oil

Horticultural oil is a safe and effective treatment option for managing lerps on mandarin plants. The oil works by suffocating the pests and breaking down their protective lerp coverings. To use horticultural oil, dilute it according to the manufacturer’s instructions and spray it directly onto the affected areas of your mandarin plant.

It is important to note that horticultural oil should be applied during periods of mild weather when temperatures are below 90°F (32°C). Applying the oil during extreme heat can lead to leaf burn or damage. Additionally, avoid spraying horticultural oil when your mandarin tree is flowering, as it can harm beneficial pollinators.

Neem Oil

Neem oil is another effective organic treatment for lerps on mandarin plants. Derived from the neem tree, this natural pesticide disrupts the feeding patterns of lerps and inhibits their growth and reproduction. Neem oil also acts as a repellent, deterring future infestations.

To use neem oil, dilute it with water according to the manufacturer’s instructions and spray it onto the affected areas of your mandarin plant. Make sure to thoroughly cover both sides of the leaves and stems. Repeat the application every 7-14 days until the infestation is under control.

Chemical Insecticides

If all else fails, chemical insecticides can be used as a last resort for severe lerp infestations. However, it is important to choose insecticides specifically labeled for citrus plants and lerps. Before using any chemical product, carefully read and follow the instructions provided by the manufacturer.

When using chemical insecticides, it is crucial to apply them according to the recommended dosage and timing. Overuse or improper application can harm your mandarin plant and other beneficial insects in your garden. Always prioritize the use of organic and natural methods before resorting to chemicals.

Conclusion

Lerps can be a frustrating pest to deal with, but with proper care and timely action, you can effectively manage their population on your mandarin plant. Remember to regularly inspect your plant for signs of infestation and take appropriate measures to control lerps. Utilize manual removal, encourage natural predators, and consider organic treatments such as horticultural oil or neem oil. By implementing these strategies, you can get rid of lerps and restore the health and productivity of your mandarin plant.