If you hear a hollow sound when you knock on wood, notice small holes in structural lumber, find mud tubes on the foundation, or see discarded termite wings near windows, your home may have termite activity.
Because termites often work out of sight, visible signs can appear only after the colony has already been active for a while. In that situation, the right treatment matters. This is where termiticides come in.
Termiticides are termite-control products used to kill, block, repel, or transfer active ingredients through termite colonies. Some are used in soil around the foundation, some are injected into wall voids, some are applied to exposed wood, and some are better left to licensed professionals.
- Subterranean termites from the soil → compare soil termiticides like Termidor SC and Taurus SC
- Hidden termites in a wall void or gallery → use a termite foam or spot treatment
- Exposed unfinished wood → use a borate wood treatment
- Colony pressure around the home → consider termite bait stations
- Severe, hidden, or recurring infestation → get termite treatment quotes from local pros
What Are Termiticides?
Termiticides are pesticides used to treat, prevent, or control termite infestations. They can be applied to soil, wood, cracks, wall voids, galleries, slabs, crawlspaces, or bait systems depending on the product and the termite situation.
Older termite treatments often focused on creating a chemical barrier around the structure. Modern products are more varied. Some are non-repellent, meaning termites cannot detect them and may transfer the active ingredient to other colony members. Others are repellent, meaning termites avoid the treated area. Borates protect wood directly, while bait systems work by termites feeding on a slow-acting active ingredient and carrying it back to the colony.
The most important point: there is no single “best termiticide” for every infestation. The right product depends on the termite species, where the activity is located, whether soil is accessible, and whether the infestation is localized or widespread.
Main Types of Termiticides
1. Soil Termiticides
Soil termiticides are liquid products applied to the soil around a foundation. They are mainly used for subterranean termites, which travel between underground colonies and wooden parts of the structure.
A proper soil treatment creates a treated zone around the foundation. When termites cross that zone, they contact the active ingredient. Non-repellent soil termiticides can also create a transfer effect, where exposed termites carry the chemistry back to other colony members.
Best for: subterranean termites, mud tubes, foundation protection, perimeter treatment, and long-term prevention where soil is accessible.
Best next guide: Best Termite Killer for Soil: Termidor SC vs Taurus SC.
Top soil termiticide options
For DIY soil treatment, the two products homeowners most often compare are Termidor SC and Taurus SC. Both use fipronil and are designed for subterranean termite soil treatment.
2. Foam Termiticides
Foam termiticides are used for targeted treatment in wall voids, galleries, cracks, expansion joints, plumbing penetrations, and other hard-to-reach areas. A foam expands after application, helping the active ingredient reach surfaces that a simple spray may miss.
Foam can be useful when termite activity is localized inside a void or accessible gallery. It is not a replacement for full soil treatment when subterranean termites are entering from the ground, but it can be helpful for targeted treatment.
Best for: wall voids, cracks, galleries, localized hidden activity, and spot treatment.
Best next guide: Best Termite Sprays and Foams for Spot Treatment.
3. Borate Wood Treatments
Borate treatments are applied directly to exposed, unfinished wood. Unlike soil termiticides, borates are not meant to create a perimeter barrier. They protect the wood itself by penetrating raw lumber and making it less suitable for termites and other wood-destroying insects.
Borates are especially useful during repairs, remodeling, framing, crawlspace work, or situations where damaged wood has been opened up and can be treated directly.
Best for: exposed unfinished wood, repairs, remodeling, crawlspaces, prevention, and localized wood protection.
Best next guide: Best Borate Wood Treatment for Termites.
Borate option for exposed wood
For raw, unfinished wood, Bora-Care is one of the common professional-grade borate options used for termite and wood-destroying insect protection.
4. Termite Baits
Termite bait systems work differently from sprays or liquid soil treatments. Instead of creating a treated soil zone, bait stations are placed around the property where termites can find and feed on them. The active ingredient is designed to work slowly, so termites can carry it back to the colony.
Bait stations are often used for monitoring, colony suppression, and situations where trenching around the foundation is not practical. They can also be paired with soil treatment as part of a broader termite-control plan.
Best for: subterranean termite monitoring, colony-level control, hardscape situations, and homes where liquid trenching is difficult.
Best next guide: Best Termite Bait Stations for Home Protection.
5. Surface Sprays
Surface sprays can kill exposed termites or wood-destroying insects that the spray directly contacts. However, they are usually limited compared with soil termiticides, foams, baits, or borates.
The main problem is access. Termites often live inside wood, behind walls, or underground. A spray on the surface may not reach the colony, which means it can reduce visible activity without solving the underlying infestation.
Best for: exposed activity, limited spot use, or supplemental treatment when label directions allow.
Not best for: full colony control, hidden infestations, or serious structural termite problems.
Termiticide Comparison Table
| Termiticide Type | Best Use | Main Limitation | Best Next Step |
|---|---|---|---|
| Soil liquid termiticide | Subterranean termites entering from soil | Requires trenching, mixing, PPE, and label compliance | Compare Termidor vs Taurus |
| Foam termiticide | Wall voids, galleries, cracks, localized activity | Not a full perimeter treatment | See spot treatment foams |
| Borate treatment | Raw exposed wood during repair or prevention | Does not work well through paint, stain, or sealed surfaces | Compare borate products |
| Bait stations | Monitoring and colony-level subterranean termite control | Slower than direct liquid treatment | See bait stations |
| Surface spray | Exposed insects or limited surface activity | Usually does not reach hidden colony members | Use only for the right situation |
Repellent vs Non-Repellent Termiticides
One of the most important differences between termiticides is whether they are repellent or non-repellent.
Repellent termiticides create a treated zone that termites try to avoid. They can be useful in some situations, but if there is a gap in the treatment, termites may simply move around it.
Non-repellent termiticides are different. Termites cannot easily detect them, so they continue moving through the treated area. This allows the active ingredient to contact termites and, in some products, spread through normal termite grooming and feeding behavior.
This is why fipronil-based soil products such as Termidor SC and Taurus SC are popular for subterranean termite soil treatment.
When DIY Termiticide Treatment Makes Sense
DIY termite treatment can make sense when the problem is limited, the treatment area is accessible, and you are comfortable following pesticide labels exactly.
DIY may be realistic when:
- you know you are dealing with subterranean termites;
- the soil around the foundation is accessible;
- you can trench, mix, measure, and apply the product safely;
- the infestation is early or localized;
- you are treating exposed wood during repairs;
- you are using bait stations for monitoring or prevention.
Even then, always read the full label. Termiticides are not casual household sprays. Application rate, location, weather, soil conditions, state rules, and safety precautions all matter.
When You Should Call a Professional
A professional inspection is the safer choice when the infestation is severe, hidden, recurring, or hard to reach. It is also the better option if the products you need are restricted in your state or if the foundation cannot be treated properly from the outside.
Call a termite professional if:
- you see mud tubes in multiple areas;
- you find termite damage in structural wood;
- termites keep coming back after DIY treatment;
- the foundation is surrounded by concrete or hardscape;
- you suspect drywood termites inside the structure;
- you are not comfortable applying pesticides around the foundation.
Not sure which termiticide is right?
Get free termite treatment quotes from licensed pros near you
If the infestation is severe, the product you need is restricted in your state, or you do not want to handle professional-grade pesticides yourself, a termite inspection is the smarter next step. Through Angi, you can describe the problem once and get matched with local pest control companies. Quotes are free, with no obligation to hire.
Free, no obligation · Local licensed pros · Takes about 60 seconds
Common Termiticide Mistakes
- Using surface spray for a hidden infestation. Surface sprays may kill exposed insects, but they usually do not reach the colony.
- Using soil treatment for drywood termites. Drywood termites live inside wood and do not need soil contact.
- Skipping part of the foundation. Subterranean termites can find gaps in a treatment zone.
- Ignoring the label. The product label controls where, how, and when the termiticide can be used.
- Buying a restricted product without checking state rules. State pesticide regulations can change.
- Breaking mud tubes and doing nothing else. Removing the visible tube does not eliminate the colony.
FAQ
What is the best termiticide for termites?
The best termiticide depends on the termite type and where the activity is located. For subterranean termites entering from soil, soil termiticides such as Termidor SC or Taurus SC are common choices. For wall voids, foam may be better. For exposed raw wood, borate treatment may be the right fit.
Are termiticides safe?
Termiticides can be used safely when applied exactly according to the label, but they are still pesticides. Wear proper protective equipment, keep people and pets away during application, and follow all label directions. If you are unsure, hire a licensed professional.
Do termiticides kill the whole colony?
Some non-repellent termiticides and bait systems are designed to affect more than the termites directly contacted. However, results depend on correct product choice, application, coverage, termite species, and colony behavior.
Can I spray termiticide on wood?
Only if the product label allows that use. Some products are made for soil, some for wood, some for wall voids, and some for bait stations. Do not assume a soil product can be sprayed on wood or used indoors.
What is the difference between termiticide and insecticide?
A termiticide is a type of insecticide labeled for termite control. Not every insecticide is suitable for termites. Termites often require specialized products because they live hidden in wood, soil, or protected tunnels.
Should I use termiticide or bait stations?
Use soil termiticide when you can create a proper treated zone around the foundation. Use bait stations when you need monitoring, colony-level control, or an option where trenching is difficult. In some cases, both can be part of the same termite-control plan.
Conclusion
Termiticides are not one-size-fits-all. Soil termiticides, foams, borates, bait stations, and surface sprays all solve different termite problems.
If subterranean termites are entering from soil, start with soil treatment options like Termidor SC and Taurus SC. If termites are hidden inside a wall void, look at spot treatment foams. If exposed unfinished wood needs protection, compare borate wood treatments. If the problem is widespread or uncertain, get a professional inspection before spending money on the wrong product.
Related Reading
- Best Termite Killer for Soil: Termidor SC vs Taurus SC
- Best Termite Sprays for Spot Treatment
- 3 Best Termite Bait Stations for Home Protection
- Best Borate Wood Treatment for Termites
- Termite Mud Tubes: What They Look Like and What to Do
- Do Termite Foggers Work?
- Best Pest Control Services Compared
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