BC's regulatory framework for pesticide use
The Integrated Pest Management Act (IPMA), SBC 2003, and its associated regulations govern pesticide use in BC. For residential tenants, the key provisions are: pesticides must be applied according to label directions (label is the law); second-generation anticoagulant rodenticides (brodifacoum, difethialone, bromadiolone, difenacoum) are banned for residential use in BC since January 2023 under the SGAR ban; and structural pesticide applications (treating building structure or building envelope) require a BC Structural Pest Control licence if done commercially. Tenants applying registered household pesticides according to label are generally permitted — but there are important exceptions and risks.
What tenants can legally do
- Use household pesticide products registered by Health Canada for the specific pest (check the label for the pest and the use-site).
- Set snap traps or glue boards in their own unit.
- Use gel baits for cockroaches (products like Combat or Advion gel, available retail) according to label — place in cracks and crevices per label.
- Apply diatomaceous earth in dry areas (behind appliances, baseboards) — not a registered pesticide in the traditional sense, but mechanically effective against crawling insects.
- Use enclosed bait stations for mice (snap-trap type or sealed bait types where bait is inaccessible to children and pets).
- Use insecticidal dust products in enclosed void areas according to label.
What tenants cannot do
- Apply banned SGAR rodenticides (brodifacoum, difethialone, bromadiolone, difenacoum) — illegal for residential use in BC.
- Use exterior rodent bait stations in a rental property without landlord consent — the landlord controls the exterior.
- Apply structural pesticides to building components (spraying inside wall voids, treating exterior foundation) without landlord consent.
- Use products not registered for the specific pest or the residential use-site.
- Apply pesticides in shared common areas (hallways, laundry rooms) — those are not the tenant's space.
- Import pesticide products from the US that are not registered by Health Canada — these may contain active ingredients banned in BC.
The strategic risk of self-treating without reporting
The biggest mistake tenants make is self-treating without first documenting and reporting to the landlord. Here's why this is strategically harmful. If you self-treat without reporting, you have no RTB claim — your written report is the foundation of the claim. If you self-treat using a method that disperses pests (aerosol sprays are the classic case), you may worsen building-wide pest pressure, which a landlord or strata council can point to as tenant-caused damage. If you self-treat and the infestation recurs, the landlord may argue that your treatment 'proves' the pest issue was minor or tenant-caused. The correct order: document, report, request professional treatment, then use DIY suppression methods (traps, sealed containers, minor gap sealing) as interim measures while waiting for professional treatment.
Lease clauses and pesticide use
Some BC leases include provisions restricting tenant pesticide use — for example, requiring landlord consent before applying any pesticides, or requiring use only of approved products. These provisions are generally valid under RTA Section 27 (which allows lease provisions that are not inconsistent with the RTA). A lease provision requiring landlord consent for pesticide application does not violate the RTA — it regulates the method of tenant self-help, not the tenant's right to request professional treatment. Read your lease. If it restricts DIY pest treatment, document your report to the landlord and wait for their professional treatment; if they fail to act within 7 days, escalate per your RTA rights regardless of the DIY restriction.
When DIY is appropriate: interim suppression
Interim DIY suppression — using snap traps, sealed containers, and minor interior gap sealing while waiting for landlord-arranged professional treatment — is reasonable, appropriate, and does not undermine your RTA rights. It demonstrates you are taking reasonable steps to minimize harm while the landlord fulfills their obligation. Document these measures in your log: 'Deployed 4 snap traps at [locations] on [date] as interim suppression while awaiting landlord-arranged professional treatment.' This strengthens, not weakens, your RTB case by showing good faith.