What have you seen?
A gloved hand spraying along a dark timber skirting board with a hand sprayer

Perth suburbs

Pest control in Dianella

Post-war homes, older flats and two big reserves.

Dianella runs from post-war houses to two-storey homes and older flats, around two regionally significant reserves, so what's worth checking depends on which kind of place you live in.

Seen a pest in Dianella?

What have you seen?

Wasp nest or bees near people? Keep children and pets away. Trouble breathing after a sting: call 000.

Only one local pest business gets your number.

  • Matched to what you've seen
  • Only one local pest business gets your number.
  • Matched to what you've seen

    Before a pest business can take jobs from Which Pest, we record the jobs it handles, so a termite job never goes to a business that only sprays for spiders.

  • Only one local pest business gets your number.

    We pass your contact details to one local pest business so it can contact you about this job.

What happens next

A local pest business calls you.

What have you seen?
  1. Tell us what you've seen

    The pest, one detail about it, and your postcode. A few taps.

  2. We pass it on

    We pass your enquiry to one local pest business that handles exactly this. They quote, do the work and deal with you directly.

  3. They call you

    The pest business talks it through, usually inspects first, and quotes in writing. You decide.

The Perth skyline across the Swan River
The Perth skyline across the Swan River.

Updated 3 November 2026 · Written by the Which Pest team · How we check our facts

What's different in Dianella

The housing varies a lot

The City of Stirling says housing here ranges from modest post-war homes to large two-storey homes. Most are single detached brick, with duplexes, villas and some older flats in the southern part. The suburb boomed in the 1960s, after its localities were amalgamated in 1958.

Two reserves that matter

The City lists the Cottonwood Crescent Nature Reserve and the Dianella Regional Open Space, at the junction of Alexander and Morley Drives, as the suburb's regionally significant natural areas. There are 65 small parks as well.

Quendas aren't rats

The City says quendas may be seen in reserves including the Dianella Regional Open Space. They're native, and native fauna is protected in WA, so be sure what you've got before anyone puts out a trap or bait.

Possums

The City says possums in urban areas are often found in tree hollows and the roof cavities of some homes. Rats and mice get mistaken for them, so check the droppings first.

House or flat: what changes?

Detached houseOlder flat or duplex
Rats and miceThe owner or renter deals with it on the blockTell the strata manager or landlord too, as the gap may be in a shared area
CockroachesUsually kitchen, bins and bathroomThey can travel along shared pipes, so one unit acting alone may not be enough
TermitesA yearly inspection, as WA Building and Energy recommendsAsk when the building last had one
Who arranges itYouOften the strata manager for common areas

Renting in Dianella

WA Health says renters as well as owners are legally responsible for preventing rats and mice from living on the property, so tell your landlord or agent early. A fumigation requirement at the end of a lease only applies if your lease or pet agreement requires it. Our end of lease guide sets out the WA position.

Snakes near the reserves

The City says spring and summer are the most active times of year for snakes, which may sun themselves in conservation reserves. If one turns up at home, keep people and pets clear and call a licensed snake catcher, not a pest business. If someone may have been bitten, call 000.

Wasps, and asking for proof

A suspected European wasp goes to DPIRD. Don't treat it, and don't go near a busy nest. For any other job, WA doesn't have a public register to search, so ask the pest business for its registration number.

If it were our place in Dianella

In a house, we'd start with a termite check if it's been over a year. In a flat, we'd talk to the strata manager before spending anything, because shared walls change the job. Either way, tap what you've seen and your postcode.

Want someone to look at it?

Tell us what you've seen and your postcode, and a local pest business that handles exactly that calls you to talk it through.

What have you seen?

Questions

Pest control in Dianella: common questions

Could the noise in my roof be a possum?

It could. DBCA says possum droppings are usually more than 2 cm long, rat droppings about 1.5 cm and mouse droppings under 1 cm. Possums are protected, so that job is proofing once it has gone out at night.

Do I have to treat my flat if the neighbours have cockroaches?

Talk to your strata manager first. A building wide plan usually works better than one unit acting alone.

Seen a pest in Dianella? Tell us what it is.

What you have seen, one tap about it and your postcode. Then a local pest business that handles exactly that calls you.

Before anyone starts

The licence rules where you live

Where this information comes from

Rules and advice change, so check the source before you act on anything here. How we write and check these pages.

What have you seen?