Pest identification and treatment use specific terminology that isn’t always explained. This glossary covers the terms you’re most likely to encounter.
- Subterranean termites require soil contact; drywood termites don’t, living directly in wood.
- Mud tubes are a key identification sign of subterranean termite activity.
- Bed bugs go through five instar (nymph) stages before adulthood.
- IPM combines monitoring, prevention, and targeted treatment rather than chemical application alone.
Termite Terms
Subterranean termites: the most common and destructive type in the U.S., living in soil and requiring ground contact or mud tubes to reach wood [1]. Drywood termites: a type that doesn’t require soil contact, living directly within dry wood, more common in specific warmer regions [2]. Mud tubes: pencil-width tunnels subterranean termites build for protected travel between soil and wood.
Further termite terms you will meet on a report
- Swarmer (alate): the winged reproductive stage that leaves an established colony to start a new one. Discarded wings indoors are a strong indicator of nearby activity.
- Frass: termite droppings. Drywood termite frass is distinctive, appearing as small hard pellets often pushed out of a kick-out hole.
- Termiticide: a pesticide labelled specifically for termites, applied to soil, wood, or foam-injected into voids.
- Treated zone: the continuous band of treated soil a liquid barrier creates. Gaps in it are where treatment failures usually originate.
- Conducive conditions: features that make a structure attractive to termites, such as wood-to-soil contact or poor drainage. Reports list these separately from actual activity.
- WDO or WDI report: the wood destroying organism or insect inspection report used in real estate transactions.
- Rodding and trenching: the methods used to place termiticide at depth around a foundation.
Bed Bug Terms
Instar: a developmental stage of a bed bug nymph between molts — bed bugs go through five instar stages before becoming adults. Fecal spotting: small dark stains left by bed bugs, a common identification sign alongside live insects or shed skins [3].
Further bed bug terms you will meet on a label or report
- Harbourage: a place bed bugs shelter between feeds, typically seams, joints, cracks, and the underside of furniture. Treatment targets harbourage rather than open surfaces.
- Interceptor: a shallow cup placed under a furniture leg that traps insects moving to or from the bed. Used for both detection and monitoring.
- Encasement: a zippered cover that seals a mattress or box spring, trapping anything inside and denying new harbourage.
- Residual: a product that remains active on a surface after application, killing insects that cross it later.
- Desiccant: a dust such as amorphous silica that kills by damaging the waxy outer layer, causing water loss. It acts slowly and is not affected by chemical resistance.
- Thermal remediation: whole-space heat treatment raising the room above the lethal threshold for all life stages.
- Aggregation: the tendency to cluster together, which is why activity concentrates in a small number of spots.
General Pest Control Terms
IPM (Integrated Pest Management): a strategy combining monitoring, prevention, and targeted treatment rather than relying solely on chemical application [4]. Residual insecticide: a treatment designed to remain effective for an extended period after application, as opposed to contact-kill-only products.
Terms that appear on contracts and product labels
- Active ingredient: the component of a product that acts on the pest. The rest is carrier and adjuvants.
- Signal word: the label word indicating acute toxicity, from Caution through Warning to Danger.
- Re-entry interval: the time that must pass after application before people or pets may return to the treated area.
- Restricted use pesticide: a product that may only be purchased and applied by a certified applicator.
- Label: the legally binding instructions for a pesticide. Applying contrary to the label is a violation, not just bad practice.
- Retreatment warranty: covers further treatment if activity returns, but not repair of damage.
- Repair warranty: covers damage repair as well as retreatment, and is materially more valuable at resale.
FAQ
What’s the difference between subterranean and drywood termites?
Subterranean termites live in soil and need ground contact or mud tubes to reach wood; drywood termites live directly within dry wood without needing soil contact.
This glossary is for general orientation — refer to your specific pest identification report or product label for terms not covered here.
References
- Termites: How to Identify and Control Them. U.S. Environmental Protection Agency
- Termites. National Pesticide Information Center (Oregon State University / U.S. EPA)
- How to Find Bed Bugs. U.S. Environmental Protection Agency
- Top Ten Tips to Prevent or Control Bed Bugs. U.S. Environmental Protection Agency
These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Content is for informational purposes only and is not medical advice; consult a qualified healthcare provider before starting any supplement. As an Amazon Associate we earn from qualifying purchases.
