How to Get Rid of Biscuit Beetles: Effective Control Methods for Eliminating Infestations

How to Get Rid of Biscuit Beetles?

To get rid of biscuit beetles, it is important to thoroughly clean and vacuum the affected area, including cracks and crevices.

Additionally, sealing and disposing of contaminated food sources is crucial.

Calling a professional pest control company for effective fumigation and using appropriate insecticides to treat infested areas can also help eliminate biscuit beetles.

Preventative measures such as reducing bulk food products, keeping food tightly sealed, storing food in a cool and dry area, and maintaining clean and tidy food storage areas can help prevent infestations.

Key Points:

  • Thoroughly clean and vacuum the affected area, including cracks and crevices
  • Seal and dispose of contaminated food sources
  • Call a professional pest control company for effective fumigation and insecticides
  • Reduce bulk food products and keep food tightly sealed
  • Store food in a cool and dry area
  • Maintain clean and tidy food storage areas to prevent infestations


Did You Know?

1. Did you know that biscuit beetles, also known as drugstore beetles, have a lifespan of up to six months?
2. Biscuit beetles have a unique ability to chew through materials such as cardboard, fabric, and even aluminum foil, making them quite destructive pests.
3. Unlike many other beetle species, biscuit beetles are attracted to dry, processed food products such as cereal, spices, and, of course, biscuits.
4. These beetles are known for their knack of finding hidden food sources, often making their way into sealed packages by squeezing through tiny openings or chewing through thin plastic.
5. The larvae of biscuit beetles have the peculiar habit of tunneling through a variety of materials, making them a potential threat to items like books, furniture, and even structural woodwork if their infestation goes unnoticed.

Physical Characteristics Of Biscuit Beetles

Biscuit beetles are small reddish-brown beetles with oval-shaped bodies and short yellowish hairs. They are often mistaken for the Common Furniture Beetle (woodworm) due to their physical similarities. Biscuit beetles are light brown to red-brown in color, measuring between 1/10 to 1/7 inch long. They have fine silky dense hairs and look similar to cigarette beetles, but can be distinguished by the distinct grooves on their wing covers and loose, 3-segmented club antennae.

These pests are attracted to warm environments and commonly infest dry stored food. Although they can fly, they do not bite humans or carry diseases.

  • Biscuit beetles are small reddish-brown beetles with oval-shaped bodies and short yellowish hairs.
  • They are often mistaken for the Common Furniture Beetle (woodworm) due to their physical similarities.
  • Biscuit beetles are light brown to red-brown in color, measuring between 1/10 to 1/7 inch long.
  • They have fine silky dense hairs and look similar to cigarette beetles.
  • They can be distinguished by the distinct grooves on their wing covers and loose, 3-segmented club antennae.
  • These pests are attracted to warm environments and commonly infest dry stored food.
  • Although they can fly, they do not bite humans or carry diseases.
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Behavior And Life Cycle Of Biscuit Beetles

Biscuit beetles are attracted to areas where dried food is stored, especially flour, pasta, grains, and biscuits. The female lays eggs in a food source, and the larvae feed on the food for about 4-5 months before entering the pupa stage. During this time, adult biscuit beetles do not eat and wander for about 3-4 weeks, laying more eggs. They can have around 4 broods per year. Biscuit beetles have a lifespan of 16 to 20 days and complete their life cycle in 2 to 7 months. Development occurs between temperatures of 60 to 93°F, with the optimal temperature being 85°F and 60 to 90% relative humidity. Biscuit beetles lay their eggs in dry organic matter such as bread, cookies, flour, grains, spices, as well as leather, hair, wool, wood, and even museum specimens.

Infestation And Spread Of Biscuit Beetles

Biscuit beetles, common pantry pests, have the ability to invade various locations such as houses, flour mills, bakeries, drugstores, and museums. These beetles can be found not only in the food source but also in other areas, such as work surfaces or window frames. Despite their small size, biscuit beetles pose a significant threat as they feed on a wide range of food and non-food materials, excluding metal or cast iron. Surprisingly, they have even been observed causing damage to oil paintings from the 17th century. Biscuit beetles are attracted to a diverse array of items, including dry foods, sweets, plant material, pharmaceutical drugs, glue, hair, leather, paper, and wool. Although harmless to humans and pets, it’s important to note that their larvae can cause damage to dry food, books, leather shoes, and paintings.

Getting Rid Of Biscuit Beetles: Hoovering And Disposal

To get rid of biscuit beetles, the affected area should be thoroughly hoovered, including cracks and crevices where the beetles may hide. It is important to seal and dispose of heavily-infested food sources to prevent the larvae from spreading. Infested items can be heated at temperatures of 120°F for 16-24 hours or at 190°F for at least an hour. Freezing them at 36°F for at least 2 weeks or at 25°F for at least a week can also be effective. When disposing of infested items, it is best to seal them in plastic bags and discard them properly.

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Effective Methods For Eliminating Biscuit Beetles

In addition to hoovering and disposal, there are several other methods that can be effective in eliminating biscuit beetles. Calling a professional pest control company for effective fumigation can help eradicate the pests. Using appropriate insecticides to treat infested areas can also be an option, although this should be a last resort due to potential dangers and food contamination. Insect growth regulators (IGRs) like Gentrol Aerosol Insect Growth Regulator are suggested instead of insecticides. IGRs have low toxicity levels and prevent eggs and larvae from developing. Pheromone traps, such as Pro-Pest Pantry Moth Traps, can trap male biscuit beetles and break their life cycle. Sticky traps, like Catchmaster Insect Trap & Monitors, can be placed near the food source to catch biscuit beetles.

Preventative Measures To Avoid Biscuit Beetle Infestations

Prevention is key in avoiding biscuit beetle infestations. Some preventative measures include:

  • reducing bulk food products
  • keeping food tightly sealed in containers
  • storing food in a cool and dry area
  • maintaining clean and tidy food storage areas

It is advised to purchase properly sealed food packages to prevent biscuit beetles from entering the home. During the summer when biscuit beetles are most active, it is best to avoid buying large amounts of grains and dry foods. Regularly cleaning storage areas and vacuuming to remove food debris can also help prevent infestations.

Additionally, inspecting bookshelves, sealing potential points of entry like damaged window screens and cracks on walls, and keeping leather items inside closets can further prevent biscuit beetle infestations.

In conclusion, biscuit beetles are small reddish-brown beetles that can infest stored dried foods. They are attracted to warm environments and have a wide range of food sources. While they are harmless to humans and pets, their larvae can cause damage to various materials. To get rid of biscuit beetles, thorough cleaning, disposal of infested items, and the use of professional pest control services or appropriate insecticides can be effective. Preventing infestations can be achieved through good hygiene practices, proper food storage, and regular inspections. By following these steps, one can eliminate biscuit beetles and prevent future infestations.


  • Preventative measures for avoiding biscuit beetle infestations
    • Reduce bulk food products
    • Keep food tightly sealed in containers
    • Store food in a cool and dry area
    • Maintain clean and tidy food storage areas
  • Additional prevention tips
    • Purchase properly sealed food packages
    • Avoid buying large amounts of grains and dry foods during the summer
    • Regularly clean storage areas and remove food debris
    • Inspect bookshelves
    • Seal potential points of entry like damaged window screens and cracks on walls
    • Keep leather items inside closets
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Frequently Asked Questions

What is the best killer for biscuit beetles?

If you’re dealing with biscuit beetles, one effective solution may be utilizing a combination of Pyrid and diatomaceous earth. Pyrid should first be applied to cracks and crevices, targeting their hiding places. Following that, the use of diatomaceous earth as a general surface spray on pantry shelves can aid in killing and preventing further infestation. Its abrasive nature can disrupt the beetles’ exoskeleton, leading to their demise. Together, these options provide a comprehensive approach to tackling biscuit beetles.

How do you get rid of hide beetles?

To effectively eliminate hide beetles, a comprehensive cleaning approach is crucial. It is imperative to thoroughly remove all traces of food debris from the affected areas, including kitchen cupboards, cookers, refrigerators, and any other impacted spaces. Additionally, any foodstuffs that have been contaminated must be properly disposed of. By meticulously cleaning and eliminating potential food sources, you can significantly reduce the presence of hide beetles and mitigate the infestation.

Do beetles hate vinegar?

No, beetles do not hate vinegar. In fact, vinegar can be quite effective in repelling certain types of beetles, such as carpet beetles. These pests are particularly repulsed by the scent of vinegar, making it a useful tool in cleaning areas where carpet beetle larvae can be found. Additionally, diatomaceous earth, a fine white dust, can also serve as a natural deterrent for these beetles.

Does vinegar get rid of beetles?

While vinegar’s high acidity can indeed eliminate carpet beetles, its effectiveness in repelling them may be limited. Although spraying vinegar directly on the beetles can neutralize and kill them, it may not prevent them from returning or deter other carpet beetles from infesting your home. While vinegar can be a useful tool in combating these pests, it’s important to consider other more effective pest control solutions to ensure long-term prevention and elimination of carpet beetles.

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