Live to Plant

Most Common Citronella Plant Pests:
Identification and Treatment Guide

Updated: March 26, 2022

Citronella plants are known for their distinctive lemony scent, which is believed to repel mosquitoes and other insects. These plants are easy to grow and care for, making them a popular choice for gardeners and homeowners. However, like all plants, citronella is susceptible to pest infestations that can damage or kill the plant if not properly treated. In this article, we’ll discuss the most common citronella plant pests and how to identify and treat them.

Common Citronella Plant Pests

  1. Aphids: Aphids are small, soft-bodied insects that suck the sap from the leaves and stems of the citronella plant. They can cause stunted growth, yellowing of leaves, and distorted leaves. Aphids are often found in large groups on the undersides of leaves.

  2. Mealybugs: Mealybugs are small, white, cotton-like insects that cluster on the leaves and stems of the citronella plant. They secrete a sticky substance called honeydew that can attract ants and sooty mold. Mealybugs can cause stunted growth, yellowing of leaves, and leaf drop.

  3. Spider mites: Spider mites are tiny pests that feed on the sap of the citronella plant. They cause yellowing of leaves and a fine webbing on the plant. Spider mites are often found in hot, dry conditions.

  4. Scale insects: Scale insects are small, round insects that attach themselves to the stems and leaves of the citronella plant. They secrete a protective covering that can make them difficult to detect. Scale insects can cause yellowing of leaves, stunted growth, and leaf drop.

How to Identify Citronella Plant Pests

The first step in treating citronella plant pests is to identify the type of pest infestation. Here are some tips on how to identify common citronella plant pests:

  • Aphids: Look for small, soft-bodied insects on the undersides of leaves. They may be green, yellow, or black.

  • Mealybugs: Look for small, white, cotton-like insects on the leaves and stems of the plant. They may also leave a sticky substance called honeydew.

  • Spider mites: Look for yellowing of leaves and a fine webbing on the plant.

  • Scale insects: Look for small, round insects attached to the stems and leaves of the plant. They may also secrete a protective covering that can make them difficult to detect.

Treatment Guide

Once you have identified the type of pest infestation on your citronella plant, here are some treatment options:

  1. Handpicking: If you only have a few pests on your plant, you can try handpicking them off. This is most effective for larger pests like caterpillars or beetles.

  2. Spraying with water: You can spray your plant with a strong jet of water to knock off pests like aphids and mealybugs.

  3. Insecticidal soap: Insecticidal soap is a safe and effective way to control aphids, mealybugs, and spider mites. Follow the instructions on the label carefully.

  4. Neem oil: Neem oil is a natural insecticide that can control a wide range of pests including aphids, mealybugs, spider mites, and scale insects. Follow the instructions on the label carefully.

  5. Systemic insecticides: Systemic insecticides are chemicals that are absorbed by the plant and kill pests when they feed on it. These are more effective for scale insects and other pests that are difficult to control with other methods. However, use systemic insecticides with caution as they can also harm beneficial insects.

FAQ

Can citronella plants attract pests?

Yes, like all plants, citronella plants can attract pests. However, the lemony scent of the plant is believed to repel mosquitoes and other insects.

How often should I check my citronella plant for pests?

You should check your citronella plant for pests at least once a week, especially during the growing season.

Should I remove a heavily infested citronella plant?

If your citronella plant is heavily infested and the damage is severe, it may be best to remove the plant to prevent the spread of pests to other plants in your garden.