A couple at Mount Kembla rang me pretty filthy about the industry in general. Four general treatments in a bit over two years, three different companies, and they were still finding spiders in the laundry and hearing something in the roof by May. Their theory was that somebody was watering down the product.
I went and had a look. The treatments had been fine. What nobody had said to them, apparently, was that their back fence was a forest.
Their block ran up against the escarpment. Wet sclerophyll, fallen timber, a creek line about forty metres past the boundary. On the other side of a paling fence there was a functionally endless supply of everything I'd just been paid to remove, and it was walking back in every single night.
That's not a treatment failure. It's a geography problem, and about a fifth of my work sits in it — the strip from Helensburgh down through Austinmer, Thirroul, Balgownie, Mount Kembla, Figtree, Mount Keira, the Kiama hinterland, and every acreage block west of the highway. If you live on one of these, the honest version of the conversation is different from the one people in the middle of Warilla get.
What changes when the bush is your neighbour
On a standard suburban block, a treatment does roughly what people imagine. You knock down what's there, you leave a treated band around the building, and re-invasion is slow because the surrounding pressure is a couple of gardens and a bit of lawn.
On a bush block you're not clearing anything. You're holding a line, and the line has to be re-held.
I try to say that before I quote rather than after, because the expectation is what makes people angry. Expect a treated house to stay quiet for twelve months against the escarpment and you'll feel ripped off by month seven. Expect to buy a much quieter house for six months and a border that holds, and you'll be happy, and you'll rebook without a phone call about it.
The other thing that changes is what you're dealing with. It isn't just more of the usual. It's a partly different cast.
The rat in the bush is probably not the rat in your roof
This one surprises people, and it shifts the whole approach.
Two of the rats around here are introduced. Black rats climb, live in roof voids and wall cavities, and are almost always the thing scratching above your bedroom at two in the morning. Then there's the bush rat, Rattus fuscipes, which is native, lives in the forest understorey and shelters in short burrows under logs and rocks. The Australian Museum's page on the bush rat notes plainly that they aren't often found in urban areas.
So the animal you're hearing in the ceiling almost certainly isn't the native one. It came out of the bush corridor, sure, but the species that goes indoors is the introduced climber.
Why does that matter? Because it decides the strategy. People on bush blocks have a strong instinct to bait the perimeter — stations along the back fence, treat the boundary like a moat. It doesn't work and it isn't clean. Supply from the bush is effectively endless, so a moat becomes a permanent feeding station rather than a solution, and everything that eats a poisoned rodent up there — owls, goannas, the neighbour's cat — is now part of your pest control program whether you meant it to be or not.
What actually holds on a bush block is exclusion. Gaps, not bait. Fascia lines that have dropped away, unscreened gable vents, the hole where the water pipe goes through the wall, tiles lifted over a valley, a subfloor vent that lost its mesh in 2009. That's a morning with a caulking gun and some galvanised mesh, it's worth more than any amount of baiting, and I've written the whole walk-around out in rodent-proofing an older Illawarra home.
One warning that comes up more on these blocks than anywhere else. Bait a rodent that's living in your wall and it will very often die in your wall, and then you've traded a scratching noise for three weeks of smell you can't locate. Baiting belongs inside the roof void, placed and monitored, not thrown along a fence line.
Termites, and the bit you can't control
Every bush block I inspect has termite pressure somewhere on it. Not necessarily in the house. On the block, or on the block behind it, which for these purposes is the same thing.
The escarpment is full of what a subterranean colony wants: moist soil, deep leaf litter, fallen hardwood in permanent contact with the ground, stumps from clearing that happened decades ago. You can't do anything about that and you shouldn't try. Nobody is treating the bush.
What you can control is the last few metres. Timber retaining walls built straight into soil against the house. Garden beds heaped over the slab edge. Mulch banked up the brickwork. Firewood stacked against a wall for four years. A deck built low and tight with no crawl access under it. Each of those is a covered highway from a colony you'll never find to a frame you'd very much like to keep, and each one hides the exact thing an inspection relies on being able to see.
I do more inspections in the escarpment suburbs than anywhere else in the region, and the honest recommendation for a bush block is annual, without exception. What happens on the visit and what moves the price is in what a termite inspection costs in the Illawarra.
Spiders, and the three metres that matter
The escarpment suburbs are funnel-web country, properly. Not "we get one occasionally" — they're at home there, and one of them, Illawarra wisharti, lives in the wet forests of this region and nowhere else on earth.
Rather than half-cover it here, the ID, the wandering season and the first aid are in funnel-webs in the Illawarra. It's the one thing on a bush block that can genuinely hurt somebody and it deserves its own read.
The relevant point for this post is where the treatment goes. On a bush block I'm treating the building and roughly the first three metres out from it: eaves, weep holes, window frames, the subfloor, the shed, the rockery and mulch beds hard against the house, the retaining wall, the path edges. Past that band I'm wasting your money and doing damage nobody asked for.
That band is the whole product. A quote that promises to treat "the property" on five acres is either misdescribing the job or shouldn't be doing it.
Ticks, which are not a spray job
I get asked about ticks on nearly every acreage quote and the answer is boring: no.
Paralysis ticks are common on this coast, they arrive on bandicoots and possums and wallabies moving through the block, and there's no perimeter treatment that meaningfully changes that on a bush property. What helps is keeping grass low in the parts of the yard people and dogs actually use, keeping a clear buffer between the bush edge and the play area, checking the dog and the kids after they've been in the long stuff, and getting year-round tick prevention from your vet.
If you do find one attached, don't grab it. The current advice on tick bites is to freeze it with an ether-containing spray from the pharmacy and let it drop off, and specifically not to squeeze, twist or pull it, because that's what makes it inject more saliva. Anyone with a known tick allergy should get medical help rather than removing it themselves.
I'd rather tell you that than sell you a spray that won't do it.
What I'd actually do if it were my place
Get the exclusion done once, properly, and stop paying for it every year. Roof line, vents, subfloor, every service penetration.
Pull the mulch and the garden beds back off the slab edge, and get the firewood off the wall and up on a rack. Cheapest termite management available. While you're at it, check the tank inlet screen, because half the acreage properties I go to have a perished one and that's a mosquito nursery with a lid on it.
Then treat twice a year rather than annually, timed for spring and autumn, and understand that twice a year on a bush block is doing more work rather than being an upsell. The plain version of what's included is on the general pest treatment page.
And get the annual termite inspection. On these blocks that's the one I'd never skip.
The Mount Kembla couple, for what it's worth, are still customers. Nothing about their treatment changed. We sealed eleven gaps in a morning, moved a woodpile, put them on twice-yearly, and the conversation stopped being about whether the product was watered down. If your back fence is a forest and you'd like a straight answer about what's realistic, give us a ring.
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