Updated: September 1, 2022

Culantro, also known as Mexican coriander or long coriander, is a popular herb used in many Latin American and Caribbean dishes. Unfortunately, caterpillars are a common pest that can damage the culantro plant and reduce its yield. In this article, we will discuss effective methods for getting rid of caterpillars on your culantro plant.

Identify the Type of Caterpillar

Before you start treating your culantro plant for caterpillars, it is important to identify the type of caterpillar you are dealing with. Some caterpillars are harmless and do not cause any damage to the plant, while others can be destructive. The most common types of caterpillars that feed on culantro plants include:

  • Armyworms
  • Cutworms
  • Cabbage loopers
  • Corn earworms

You can identify the type of caterpillar by examining its physical characteristics and behavior.

Manual Removal

One of the simplest and most effective ways to get rid of caterpillars on your culantro plant is to manually remove them. Wear gloves and gently pick off any visible caterpillars from the leaves and stems of the plant. Be sure to dispose of them in a sealed plastic bag or container to prevent them from returning.

Neem Oil

Neem oil is a natural insecticide that can help control caterpillar infestations on your culantro plant. Mix one tablespoon of neem oil with one gallon of water and spray the solution onto the leaves and stems of the plant. Repeat this process every seven to 10 days until the caterpillars are gone.

Bacillus Thuringiensis (Bt)

Bacillus thuringiensis (Bt) is a naturally occurring soil bacterium that can be used as a biological control for caterpillars. Bt produces a toxin that is harmful to caterpillars but safe for humans and other animals. Mix one tablespoon of Bt with one gallon of water and spray the solution onto the culantro plant. Repeat this process every seven to 10 days until the caterpillars are gone.

Diatomaceous Earth

Diatomaceous earth is a natural substance made from the fossilized remains of diatoms, a type of algae. It works by dehydrating and killing insects, including caterpillars. Sprinkle a thin layer of diatomaceous earth around the base of your culantro plant and on the leaves and stems. Be sure to reapply after rain or watering.

Frequently Asked Questions (FAQ)

How do I prevent caterpillars from infesting my culantro plant in the first place?

One way to prevent caterpillars from infesting your culantro plant is to keep your garden clean and free of debris. Caterpillars often hide in dead leaves, grass clippings, and other organic matter. You can also use row covers or netting to prevent adult moths from laying eggs on your plants.

Are there any natural predators that can control caterpillar infestations?

Yes, there are many natural predators that feed on caterpillars, including birds, spiders, and wasps. Encouraging these predators to live in your garden can help control caterpillar populations.

Can I use pesticides to get rid of caterpillars on my culantro plant?

While pesticides can be effective at controlling caterpillar infestations, they can also harm beneficial insects and pollinators. It is best to try natural methods first and use pesticides as a last resort.

In conclusion, caterpillar infestations can be a frustrating problem for culantro growers. However, with a little patience and persistence, you can effectively control these pests using natural methods such as manual removal, neem oil, Bt, and diatomaceous earth. By taking proactive steps to prevent caterpillar infestations and encouraging natural predators in your garden, you can enjoy a healthy and productive culantro plant.