Live to Plant

How to Get Rid of Worms in Kale Plant

Updated: July 16, 2023

Kale is a popular leafy green vegetable that is packed with essential nutrients and is a staple in many healthy diets. However, one common problem that kale growers face is the infestation of worms or caterpillars on their plants. These pests can cause significant damage to the leaves and diminish the overall yield of the plant. In this article, we will discuss effective methods to get rid of worms in kale plants and ensure a healthy harvest.

Understanding the Culprits: Common Worms Found on Kale

Before diving into the solutions, it is important to identify the worms commonly found on kale plants. The most common culprits are cabbage loopers (Trichoplusia ni), diamondback moths (Plutella xylostella), and cabbage worms (Pieris rapae). These worms are voracious eaters and can quickly decimate kale leaves if left unchecked.

Cabbage loopers are green caterpillars that move in a looping motion when disturbed. Diamondback moths are small, grayish-brown moths that lay eggs on the undersides of kale leaves. The larvae that hatch from these eggs feed on the foliage, leaving behind characteristic holes. Cabbage worms, also known as imported cabbageworms, are green caterpillars with white stripes that can be easily recognized by their chewing damage.

Implementing Organic Pest Control Methods

To protect your kale plants from worm infestations, it is important to adopt organic pest control methods. These methods are not only effective but also safe for consumption, ensuring that your kale remains free from harmful chemical residues.

1. Handpicking

One simple and effective method to control worm infestations is handpicking. Inspect your kale plants regularly and remove any visible worms or caterpillars by hand. This method works best for smaller gardens or potted plants, where manual removal is feasible. Remember to dispose of the pests away from the garden to prevent reinfestation.

2. Introduce Beneficial Insects

Another natural way to combat worms in kale plants is by introducing beneficial insects that prey on these pests. Ladybugs and lacewings are known to feed on cabbage worms and can help reduce their population significantly. You can attract these insects to your garden by planting flowers that provide nectar and pollen, such as marigolds and alyssum.

3. Use Floating Row Covers

Floating row covers are lightweight, translucent fabrics that create a physical barrier around your kale plants. These covers allow sunlight, air, and water to reach the plants while preventing worms and other pests from accessing them. Install the row covers over your kale plants as soon as they are transplanted to prevent egg-laying by diamondback moths and other pests.

4. Apply Organic Insecticides

If the infestation is severe or other methods have proven ineffective, you may consider using organic insecticides to control worms in kale plants. Bacillus thuringiensis (Bt) is a commonly used organic insecticide that specifically targets caterpillars while being safe for humans and beneficial insects. Follow the instructions on the product label for application rates and timings.

Maintaining Good Garden Practices

Apart from implementing pest control methods, it is essential to maintain good garden practices to prevent worm infestations in the first place. Here are some tips to keep your kale plants healthy and resilient:

1. Crop Rotation

Rotating your crops annually can help break the cycle of worm infestations. Avoid planting kale or other brassicas in the same location year after year. Rotate with unrelated crops like legumes or root vegetables to disrupt the life cycle of common kale worms.

2. Remove Plant Debris

Cleanliness is key to preventing pest infestations. Remove any fallen leaves or plant debris from the garden regularly. These debris can serve as hiding places for pests and provide a conducive environment for their reproduction.

3. Provide Adequate Nutrition

Well-nourished plants are more resistant to pest attacks. Ensure your kale plants receive adequate nutrition by amending the soil with organic matter, such as compost or well-rotted manure. Regularly monitor soil pH and nutrient levels to maintain optimal growing conditions for your plants.

4. Practice Companion Planting

Companion planting is an effective way to deter pests naturally. Planting aromatic herbs like dill, sage, or mint near your kale can repel worms and other pests. Additionally, certain flowers like nasturtiums and calendula act as trap crops, attracting pests away from your kale plants.

By following these organic pest control methods and maintaining good garden practices, you can effectively get rid of worms in kale plants and enjoy a healthy harvest of this nutritious vegetable. Remember that prevention is always better than cure, so stay vigilant and take proactive measures to keep your kale garden worm-free.