Pillar Pest Control

Pillar Pest Control

How to Get Rid of Plaster Bagworm?

How to Get Rid of Plaster Bagworm?

Dealing with a plaster bagworm infestation can be a frustrating experience. These small pests can cause damage to walls, ceilings, and other surfaces, leading to an unsightly appearance. In this comprehensive guide, we will explore effective methods on how to get rid of plaster bagworms and prevent their recurrence, ensuring a pest-free environment.

Understanding Plaster Bagworm: 

Plaster bagworms, scientifically known as Phereoeca uterella, are small household pests that belong to the family Tineidae. These insects are often mistaken for moths due to their bag-like structures. Plaster bagworm larvae build protective cases or bags using silk and debris found in their environment. These bags serve as their homes and provide them with protection throughout their life cycle. Understanding their appearance, habits, and life cycle is crucial for effectively eliminating them.

Plaster bagworms have a relatively short life cycle, consisting of several stages: egg, larva, pupa, and adult. The larvae are in the destructive stage, as they feed on organic matter, including debris, dust, spider webs, and even small insects. As they grow, they construct bags that blend in with their surroundings, making them difficult to detect.

how to get rid of plaster bagworm

Identifying Signs of Plaster Bagworm Infestation 

Detecting a plaster bagworm infestation early is crucial for prompt action. Look for the following signs that indicate the presence of plaster bagworms:

  1. Bag-like Structures: Plaster bagworm larvae construct distinctive bag-like structures that hang from walls, ceilings, and other surfaces. These bags are typically cone-shaped, elongated, and can vary in size. They are often camouflaged with debris and blend in with the surrounding materials, making them difficult to spot.
  2. Silk Trails: You may notice silk trails or webbing around the bags or in corners and crevices. These silk trails are left behind by the larvae as they move and construct their bags.
  3. Larvae: Plaster bagworm larvae are small, elongated insects with a segmented body. They have a grayish-brown color and are covered in fine hairs. The larvae are usually found inside their bags or crawling near them.

How to Get Rid of Plaster Bagworm- Prevention Methods

Prevention plays a vital role in keeping your home free from plaster bagworms. Consider the following methods to minimize the chances of infestation:

A. Reducing Attractants:

  • Proper Storage and Cleaning: To discourage plaster bagworms from entering your home, maintain cleanliness and proper storage practices:
    • Regularly clean your home, paying special attention to areas where debris can accumulate, such as corners, crevices, and spider webs.
    • Properly store materials that can serve as food sources for bagworm larvae, such as fabric, paper products, and debris. Keep these items off the floor and away from walls.
  • Sealing Entry Points: Prevent bagworms from entering your home by sealing cracks, gaps, and openings:
    • Inspect and seal cracks and gaps in walls, windows, doors, and other potential entry points.
    • Pay attention to utility lines and pipes entering your home and ensure they are properly sealed.

B. Lighting Management:

  1. Exterior Lighting: Minimize outdoor lighting near entrances and windows to reduce the attraction of adult bagworms seeking light sources. Consider using motion-sensor lights or installing them further away from your home.
  2. Indoor Lighting: Switch to yellow or sodium vapor light bulbs instead of white or fluorescent bulbs, as they are less attractive to bagworms. Reduce the intensity of indoor lighting during the evening and nighttime hours.
Prevention Methods

Natural Control Methods for Plaster Bagworm Elimination

When it comes to eliminating plaster bagworms, natural control methods can be effective and safe for your home environment. Consider the following methods:

A. Manual Removal:

  • Bagworm Removal: Physically removing bagworms and their bags is a crucial step in controlling the infestation:
    • Inspect your home and identify areas with bagworm activity.
    • Gently remove the bags using a vacuum cleaner, brush, or by handpicking.
    • Pay special attention to areas where the bags are attached, ensuring that you remove them completely.
  • Proper Disposal: After removing the bags, seal them in plastic bags before disposing of them in outdoor trash bins. This prevents the bagworms from reinfesting your home.

B. Natural Repellents:

Essential Oils: Utilize the natural repellent properties of essential oils to deter bagworms:

  • Prepare a solution by diluting essential oils such as lavender, cedarwood, or neem oil with water.
  • Apply the solution to affected areas, focusing on walls, ceilings, and other surfaces where bagworms are present.
  • You can also place cotton balls soaked in essential oil near bagworm activity areas to repel them.

Chemical Solutions as a Last Resort 

If the infestation persists or is severe, chemical control methods may be considered as a last resort. It is important to note that the use of chemicals should be handled by professionals. Consult with a professional pest control service to ensure proper and safe application of chemicals.

Maintenance and Regular Inspection 

To prevent future infestations, regular maintenance, and inspection are crucial. Keep the following practices in mind:

  • Regularly inspect your home, paying close attention to walls, ceilings, and other areas where bagworms are likely to construct their bags.
  • Address any signs of infestation promptly to prevent the spread and damage caused by the bagworms.
  • Keep your home clean and minimize debris accumulation to deter bagworms from finding suitable materials for their bags.

Learn about, How to get rid of moths in your pantry.


What are plaster bagworms, and why are they a concern?

Plaster bagworms are small household pests that construct protective bags made of debris and plaster. They can cause damage to walls, ceilings, and other surfaces. Addressing the infestation is important to prevent further damage and maintain a pest-free environment.

Can I eliminate plaster bagworms without using chemicals?

 Yes, it is possible to get rid of plaster bagworms using natural methods. Manual removal of the bags, regular cleaning and proper storage practices, and the use of natural repellents like essential oils can effectively control the infestation without the need for chemicals.

How do I identify a plaster bagworm infestation?

Look for bag-like structures hanging from walls, ceilings, or other surfaces. These bags are usually made of debris and blend in with the surroundings. Silk trails and the presence of larvae near the bags are also signs of an infestation.

Are plaster bagworms harmful to humans or pets?

Plaster bagworms do not pose a direct threat to humans or pets. However, they can cause damage to structures and stored items. It is best to eliminate them to maintain a clean and hygienic living environment.


By implementing the effective methods outlined in this comprehensive guide, you can successfully get rid of plaster bagworms and maintain a pest-free environment. Through prevention, early detection, natural control methods, and regular maintenance, you can ensure that your home remains free from these bothersome pests. Take proactive measures, follow the recommended techniques, and seek professional assistance if necessary. With determination and diligence, you can eliminate plaster bagworms and enjoy a pest-free living space.

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