Updated: April 26, 2024

Cutworms are a common pest that can wreak havoc on your beloved Bell Heather plants. These caterpillars feed on the stems of the plant at soil level, often causing irreparable damage. If you’ve noticed signs of cutworm activity on your Bell Heather, it’s crucial to take action promptly to protect your plant. In this article, we’ll discuss effective methods to get rid of cutworms and safeguard your Bell Heather plant.

Identifying Cutworms

Before you can effectively combat cutworms, it’s essential to identify them. Cutworms are plump, gray or brown caterpillars that curl up when disturbed. They typically feed at night and hide in the soil during the day. Signs of cutworm infestation on Bell Heather plants include wilting or severed stems at ground level.

Natural Methods to Control Cutworms

1. Handpicking

One of the simplest and most effective methods of dealing with cutworms is handpicking. Inspect your Bell Heather plant regularly, especially during the evening hours when cutworms are most active. Remove any caterpillars you find and dispose of them away from your garden.

2. Beneficial Insects

Introducing beneficial insects such as parasitic wasps or predatory ground beetles can help control cutworm populations naturally. These insects prey on cutworms and can assist in keeping their numbers in check.

3. Diatomaceous Earth

Diatomaceous earth is a natural substance that can be sprinkled around the base of your Bell Heather plant as a barrier against cutworms. This powdery substance is abrasive to insects and can deter them from climbing up the stems.

Chemical Control Options

If natural methods prove ineffective or if the cutworm infestation is severe, you may need to resort to chemical control options. It’s essential to use chemical pesticides responsibly and follow all safety precautions outlined on the product label.

1. Bt (Bacillus thuringiensis)

Bt is a naturally occurring bacterium that specifically targets caterpillars like cutworms. It is considered safe for humans, pets, and beneficial insects but is lethal to caterpillars when ingested.

2. Insecticidal Soap

Insecticidal soap is another option for controlling cutworm populations on Bell Heather plants. This soap disrupts the cuticle of insects upon contact, leading to dehydration and death.

Preventative Measures

Preventing cutworm infestations is key to protecting your Bell Heather plants in the long run. Here are some preventative measures you can take:

  • Crop Rotation: Avoid planting Bell Heather in the same location year after year to disrupt the life cycle of cutworms.
  • Tillage: Cultivate the soil in early spring to expose cutworm pupae to predators and harsh weather conditions.
  • Collars: Create physical barriers around the base of your plants using cardboard collars or toilet paper rolls to prevent cutworm access.
  • Clean Garden: Keep your garden free from debris and weeds where cutworms can hide during the day.

Conclusion

Cutworms can pose a significant threat to your Bell Heather plants, but with prompt action and diligent care, you can effectively manage their populations and protect your beloved flowers. By utilizing natural control methods, considering chemical options when necessary, and implementing preventative measures, you can ensure a thriving garden free from the damage caused by these pesky pests. Stay vigilant, observe your plants regularly, and take proactive steps to keep cutworms at bay for a healthy and vibrant Bell Heather display in your garden.