Woodworm can undermine the strength and appearance of wooden furniture. This guide highlights effective treatment options and how to choose the right product for your needs. We review five topical solutions designed to penetrate wood, prevent decay, and guard against common wood-destroying insects. Use this as a reference to identify a treatment that fits your furniture, environment, and maintenance routine.
| Product | Brand | Format | Primary Use |
|---|---|---|---|
| Nisus Tim-BOR Professional | Nisus | Dust / Liquid / Foam | Wood preservation, insect control, decay prevention |
| PenaShield | Nisus | Ready-to-use liquid | Termite & wood-destroying insect protection |
| System Three Borate Powder | SYSTEMTHREE | Water-soluble powder | Insecticide, termiticide, fungicide for wood |
| BASF Termidor Foam | BASF | Foam | Spot treatment for termites and nesting areas |
| Valhalla Wood Preservatives | VALHALLA WOOD PRESERVATIVES | Pouch | Lifetime, eco-friendly wood protection |
The products below are selected for their relevance to furniture wood care, safety considerations, and practical application methods. Each section provides essential details to help you compare options and make an informed choice.
Nisus Tim-BOR Professional Insecticidal Dust

Nisus Tim-BOR Professional is a versatile borate-based treatment that can be applied as a dust, liquid, or foam. Its flexible formulations allow targeted penetration into wood surfaces and hidden spaces, making it suitable for furniture where larvae or beetle activity may be concealed within cavities. The product supports long-lasting control of wood decay and insects such as termites and carpenter ants, helping protect structural integrity and finish.
Key considerations: It serves both preventive and remedial roles and is designed to avoid staining on bare wood surfaces. Its non-corrosive properties help maintain fittings and hardware over time. Consider durability and the specific insect threat in your furniture example when selecting Tim-BOR in your care plan.
Dust Mite Killer Spray By Mite-B-Gone

While primarily marketed for mite control, this spray offers a natural, plant-based approach that can complement wood treatments by reducing indoor pests around furniture areas. It is described as safe for households and livestock environments, making it a practical option for homes with children or pets when used as part of a broader pest management plan.
Key considerations: Look for compatibility with wood finishes and follow directions for indoor use. It should not substitute for structural wood protection but can support hygiene and surface-level pest reduction near treated furniture.
Durvet Permethrin 10%

Durvet Permethrin concentrate is an insecticide designed for rapid knockdown of insects, including pests associated with livestock and agricultural settings. It is also used in some home application scenarios to manage insect exposure on treated wood. This product is non-targeted to woodworm specifically but can be part of a broader pest management approach in environments that include wooden furniture components near entry points or animal areas.
Key considerations: Follow label directions, particularly for use around animals and food areas. It is not a wood-specific preservative, so use in combination with wood-safe treatments when addressing furniture woodworm concerns.
System Three Borate Powder

System Three Borate Powder is an EPA-registered concentrate that serves as an insecticide, termiticide, and fungicide for wood. The water-soluble formulation allows easy mixing and application to wood surfaces, providing protection against a broad spectrum of wood-destroying organisms. It is particularly suitable for treating structural wood components and furniture with accessible cavities.
Key considerations: Ensure proper coverage and reuse plans, especially for larger furniture pieces. The borate penetrates wood to deter both insects and decay fungi, offering a long-term protective effect when used as part of a maintenance routine.
BASF Termidor Foam 20 oz

Termidor Foam is a ready-to-use foam formulation that expands significantly to reach deep into voids, galleries, and nests. The active ingredient is non-repellent, allowing termites and other pests to come into contact with the product as the foam fills channels. It is well-suited for spot treatments in walls, decks, and furniture cavities where direct access is limited.
Key considerations: Ideal for targeted interventions rather than full-structure fumigation. The foam’s durability helps it remain effective as it hardens, aiding long-lasting control in treated areas of wooden furniture or adjacent wood structures.
PenaShield Penetrating Wood Preservative

PenaShield offers a ready-to-use borate-based solution that penetrates deeply into untreated wood to guard against termites, carpenter ants, wood-boring beetles, and decay fungi. The formula is designed for straightforward application to decks, attics, or woodworking projects, with an emphasis on long-term protection and ease of use. Finished wood can be painted or stained after treatment without discoloration.
Key considerations: Deep penetration helps protect structural elements and furniture over years of use. For indoor furniture, ensure proper ventilation during application and allow complete drying before finishing or occupancy.
Valhalla Wood Preservatives 1-Gallon

Valhalla Wood Preservatives offer an eco-friendly, non-toxic lifetime treatment that penetrates wood fibers to permanently modify the wood structure. The product is designed for marinas, houses, and decking, making it suitable for furniture exposed to outdoor conditions or humid indoor environments where woodhealth protection is critical. Its non-toxicity supports safer use around families and pets.
Key considerations: This option emphasizes longevity and environmental safety. It is best used where long-term protection is desired, including outdoor furniture or pieces subject to moisture and sunlight exposure.
Buying Guide: Key Purchase Considerations
- Target pests: Identify whether your furniture faces termites, carpenter ants, wood-boring beetles, mold, or decay fungi to choose the correct product family (borates, foams, or surface preservatives).
- Application method: Dusts and liquids allow different penetration depths. Foams are helpful for hard-to-reach voids, while ready-to-use liquids are convenient for quick treatment of exposed surfaces.
- Wood type and finish: Some treatments may discolor or stain certain woods. Look for products labeled safe for bare wood or compatible with paints and stains if finishing will follow.
- Indoor vs outdoor use: Indoor furniture benefits from non-toxic, low-odor formulas. Outdoor pieces require more durable, moisture-resistant barriers and possibly eco-friendly preservatives.
- Long-term protection: Borate-based products tend to offer lasting protection against a range of wood-destroying organisms, but require proper application and re-treatment schedules.
- Safety and ventilation: Some products require gloves, masks, or ventilation during application. Always follow label directions to minimize exposure risk to occupants and pets.
- Cost and availability: Consider the total volume needed for furniture and whether a product is sold in a ready-to-use form or as a concentrate requiring mixing.
- Finish compatibility: If you plan to paint or seal after treatment, verify that the product won’t interfere with coatings or adhesives used on the furniture.
- Environmental impact: Eco-friendly or non-toxic options may be preferable for homes with children, pets, or water-sensitive surroundings.
When selecting a woodworm treatment for furniture, consider the specific infestation, furniture location, and desired maintenance interval. Combining a targeted treatment with regular inspection can help preserve the look and strength of wooden pieces for years to come.