The Bo-Kaap climbs up the slopes of Signal Hill above the city centre, with brightly painted houses, cobbled streets and the oldest mosque in South Africa on Dorp Street. Homes here are packed close together and often very old, so pests like rats, cockroaches and pigeons move easily from one roof to the next.
Flying insects in Bo-Kaap: what we see
Flies follow the food trade on Wale Street and the busy weekend crowds. Paper wasps sometimes build under the roof edge and window hoods, but mosquitoes are minor on these steep, well-drained streets.
The suburb sits on the lower slopes of Signal Hill, with steep streets that catch the full force of the South-Easter as it comes off Table Mountain. Winter rain runs down the hill and can soak old walls, encouraging fishmoths and damp-loving insects. The city centre below provides food and shelter for rodents.
Most homes are flat-roofed terraced houses from the 18th and 19th centuries, many with thick walls, old timber beams and small backyards. Flat roofs and parapet walls give pigeons places to roost and nest. Shared walls and old drainage pipes let cockroaches and rodents travel between neighbours.
From the technician
With small children and pets in the house, we lean heavily on physical fixes, baits placed out of reach and drain treatments, and keep spraying to the places that really need it.
Tell-tale signs
- A sudden swarm of large blowflies appears indoors, which often points to something dead in the roof or wall.
- You hear whining at night and wake up with fresh bites on exposed arms and ankles.
- Small moths flutter out of the pantry or out of a cupboard full of woollens.
- Small flies hover over the fruit bowl, the recycling bin or the drip tray under a bar tap.
- Tiny moth-like flies sit on bathroom walls near the shower or basin drain.
- Flies keep gathering around the same window, light or rubbish area even after you have cleaned and sprayed.
How the treatment works
We start by identifying the insect properly, because a drain fly needs a completely different fix from a house fly or a mosquito. Breeding sites come first: drains are cleaned out and treated with a larvicide or bio-enzyme product, standing water is tipped or treated, and waste areas are sorted out. Only then do we use residual sprays on resting surfaces such as window frames and wall tops, fly bait stations away from food, and ULV fogging where a large space needs a quick knockdown. In commercial kitchens and food stores we install insect light traps with glue boards so there is constant monitoring between visits. Wasp nests are treated with a dust or spray directly into the nest and removed once the colony is dead.
Want the full step-by-step? See how our flying insect control service works.
Keeping them out afterwards
- Tip out pot plant saucers, birdbaths and anything else that holds water for more than a few days.
- Pour boiling water down slow drains weekly and scrub the inside of the drain pipe with a brush, since that slime is where drain flies breed.
- Fit fly screens on kitchen windows and keep a self-closing door or strip curtain on back doors that open onto bins.
- Store flour, cereal and pet food in sealed containers so pantry moths have nothing to breed in.
- Check eaves, carports and garden furniture in early spring for small paper wasp nests while they are still easy to deal with.
Pricing, honestly
The price depends on which insect we are treating, because a single wasp nest is a very different job from a fly problem in a large food factory. The size of the property, how many breeding sites there are and how hard they are to get at, such as roof voids or sealed drains, all affect the time on site. Commercial sites with light traps and scheduled visits are usually best quoted as a contract, and we give free quotes once we know what is flying.
Flying insects peak from about October to March, when hot weather speeds up breeding and a fly can go from egg to adult in around a week. The south-easter keeps numbers down on the exposed side of the city but pushes flies indoors in sheltered suburbs, and mosquitoes often surge after the last winter rains leave water lying around. Wasps build their nests in spring and are at their most defensive in late summer when colonies are biggest.
Flying Insect Control questions from Bo-Kaap
Are Bo-Kaap's old houses more prone to wood borer?
They can be, because many still have original timber beams and floors. A proper inspection will show whether the beetles are active and what treatment is safe for heritage timber.
Is fogging safe for my pets and children?
Fogging is only used where it is needed, and people and pets stay out until the product has settled and the room has been aired. We tell you exactly how long to wait before we start.
Why do pigeons like Bo-Kaap flat roofs so much?
The parapet walls and flat roofs give them sheltered ledges to roost and nest. Netting or spikes on parapets, plus clearing nests, usually move them on.
Do insect light traps actually work?
Yes, in the right place. They catch flies that get past your doors and screens and, just as usefully, the glue boards show us what is getting in and how many, which is why food businesses rely on them.
Do you come out to Bo-Kaap for flying insect control?
Yes. Bo-Kaap is part of our regular City Bowl & Atlantic Seaboard route, along with Malay Quarter, Schotsche Kloof, De Waterkant, City Bowl. Most bookings are done within about 48 hours, and after-hours visits can be arranged.
Can you treat a whole business, not just a house?
Yes. Restaurants, food factories, warehouses and offices usually go onto a contract with scheduled visits, monitoring and a report for each service.
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