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How to Get Rid of Caterpillars on Cypress Plant

Updated: July 11, 2022

Cypress plants are known for their beautiful foliage and unique shape, but they are also a favorite food source for caterpillars. If left unchecked, these caterpillars can cause significant damage to the plant, leading to stunted growth and even death. Fortunately, there are several ways to get rid of caterpillars on cypress plants.

Identify the Type of Caterpillar

Before you can take steps to get rid of caterpillars on your cypress plant, it’s important to identify the type of caterpillar you’re dealing with. This will help you choose the most effective treatment method. Some common types of caterpillars that feed on cypress plants include:

  • Cypress tip moth
  • Bagworms
  • Fall webworms
  • Eastern tent caterpillars

Each of these caterpillars has a unique appearance and behavior, so it’s important to do some research or consult with a professional to identify the type of caterpillar infesting your cypress plant.

Remove Caterpillars by Hand

If you only have a few caterpillars on your cypress plant, you may be able to remove them by hand. Simply put on a pair of gloves and pick off the caterpillars one by one. Be sure to dispose of them in a sealed bag or container to prevent them from crawling back onto your plant.

Use Insecticidal Soap

Insecticidal soap is a safe and effective way to get rid of caterpillars on your cypress plant. It works by suffocating the insects, so it’s important to thoroughly coat both the tops and bottoms of the leaves where the caterpillars are feeding. Follow the instructions on the label carefully, as overuse can damage your plant.

Apply Bacillus Thuringiensis (BT)

Bacillus thuringiensis (BT) is a natural bacteria that is toxic to caterpillars. It can be applied as a spray or dust and is especially effective against the larvae of moths and butterflies. Be sure to follow the instructions on the label carefully, as overuse can harm beneficial insects like bees and butterflies.

Use Neem Oil

Neem oil is a natural insecticide that works by disrupting the feeding and reproductive behavior of caterpillars. It can be applied as a spray or drench and is safe for use on cypress plants. Be sure to follow the instructions on the label carefully, as overuse can damage your plant.

Practice Good Garden Maintenance

Preventing caterpillar infestations in the first place is always the best course of action. Practicing good garden maintenance, such as regularly watering and fertilizing your cypress plant, can help keep it healthy and less susceptible to pests. You can also remove any dead or damaged branches and leaves, which can attract caterpillars.

Frequently Asked Questions

What are some signs that my cypress plant has a caterpillar infestation?

Some signs that your cypress plant has a caterpillar infestation include skeletonized leaves (where only the veins remain), webbing, and droppings.

Can I use more than one treatment method at once to get rid of caterpillars on my cypress plant?

It’s generally not recommended to use more than one treatment method at once, as overuse can harm beneficial insects and damage your plant. Choose the treatment method that best fits your needs and follow the instructions carefully.

How often should I treat my cypress plant for caterpillars?

The frequency of treatment will depend on the severity of the infestation and the treatment method used. Follow the instructions on the label carefully and monitor your plant regularly for signs of new infestations.