Mosquito control in Harat Al Baharah, Jeddah

Targeted, not broadcast

Product goes into cracks and runways, never sprayed across open surfaces.
Told before we start

What we will use, where it goes, and what to cover or move before we arrive.
A follow-up visit

We return after the first treatment, because what survives it does not show on the day.
Homes and businesses

Apartments and villas, and kitchens and stores that need a record of each visit.

Why they keep coming back in Harat Al Baharah

Sea breezes laden with salt spray keep walls and roofs damp year round, and mosquitoes have no trouble finding standing water in any small gap. The method is set out in full on Mosquito control in detail.

The first reason

Proliferation of household water tanks

Every house in the quarter holds a water tank on the roof or in the yard because water arrives by tanker rather than by mains pipe. These tanks may not be properly sealed and their air vents are open, making it easy for emerging mosquitoes to find their way in.

The second reason

Permanent sea humidity and salt air

Sea humidity is high all year and never drops, salt laden breezes keep walls and roofs damp permanently. This creates ideal conditions for mosquitoes at all times, no dry season to interrupt breeding.

The third reason

Narrow lanes and tiny gaps in the structure

Lanes between old houses are extremely narrow and the small gaps between walls provide permanent shade and shelter. Standing water in these gaps is hard to see and harder to clear.

Landmarks of Harat Al Baharah

The quarter lies close to Thuwal's old harbour and the corniche that Saudi Aramco maintains, so treatment begins at the harbour end of the quarter where humidity and household tanks concentrate, extending through the narrow internal lanes toward the centre of the settlement.

Thuwal Harbour
Thuwal Corniche
Al Shati Mosque
King Abdullah University of Science and Technology

Before treatment

Standing water and shade decide the method

An old coastal quarter with permanent sea humidity, tanker-delivered water feeding household tanks in every dwelling, very narrow lanes and aged irregular drainage.

The daytime biter

The daytime biter in Harat Al Baharah hides in the impossibly narrow gaps between walls and on damp surfaces, kept wet year round by sea humidity.

A drainage grate over dark standing water

The one that comes out after sunset

After sunset it emerges from the tight gaps in the very narrow streets, shade and humidity providing safe passage between houses.

An outdoor air-conditioning unit fixed to a building wall

Air-conditioning condensate

Wash water and waste drain into the narrow lanes and pool in small gaps, sea humidity keeps it standing and available.

The tank and its openings

Household tanks and their openings may be entry points for emerging mosquitoes, air vents and openings are not properly sealed in old houses.

Potted plants in a garden standing in saucers

Garden containers and irrigation

Surfaces dampened by sea humidity and salt laden wind spray hold standing water on the roof and walls, with creeping plants providing shelter.

The shade it rests in

Permanent shade in the extremely narrow lanes and moisture trapped between walls provide all-day refuge for adults, needing to emerge minimally to hunt.

How we work

1
Inspect and map the water

We walk the perimeter, the roof, the garden, the meter chambers and the condensate runs, record everything that holds water, and read the species from the breeding site and the time of biting.
2
Remove the water that can go

Empty, invert, cover: saucers, containers, old tyres and roof gullies. Every point that disappears is a treatment that never needs repeating.
3
Larval treatment, then the resting surfaces

Water that cannot be drained is treated so the larva never completes, then a residual goes under planting, beneath outdoor furniture and along low shaded walls.
4
The follow-up visit

We come back once the generation that was in the water on the first visit has completed, review every point we recorded and re-treat where needed.

What mosquito control includes

A recorded water survey

Roof, perimeter, garden, meter chambers and condensate lines, written down before anything is applied.
Draining and covering the sources

Emptying what can be emptied, draining what can be drained, and covering what has to stay full.
Larval treatment for the water that stays

For ground tanks, inspection chambers, water features and any permanent water that has to remain.
A residual on the resting places

Under trees and shrubs, beneath outdoor furniture and on shaded walls, where the adult sits out the day.
Aftercare instructions

What stays inverted, what gets covered, which openings need mesh, and when watering goes back to normal.
A scheduled follow-up

A set date after the first treatment, with every recorded water point reviewed and re-treated if the water came back.

What is different about Thuwal Sub-Municipality

Thuwal sub municipality is a small fishing town on the Red Sea coast at the far northern edge of Jeddah governorate. Its old quarters are closely packed popular and mud built houses on narrow streets, with newer low rise concrete homes from the town's development programme beside them. Sea humidity stays high all year, the fishing harbour and the corniche form its seafront, water arrives by tanker so household tanks are everywhere, and the town sits on Wadi Thuwal, ringed by open ground and by the irrigated green campus of King Abdullah University of Science and Technology.

Questions about this district

Are household water tanks the primary mosquito source in Harat Al Baharah?

Yes. Tank openings and air vents may allow emerging mosquitoes entry, we recommend inspecting every tank, securing its seal and capping all openings.

Does the high sea humidity speed up mosquito breeding?

Yes, clearly. Humidity is high year round so the breeding cycle never stops. Mosquitoes breed faster than in dry inland areas.

Could the tanker water being poured into tanks introduce eggs or larvae?

Yes, if the tankers are not properly cleaned before filling. We recommend sterilising tanks at each fill to avoid importing breeding stock.

Do the narrow lanes make mosquito spread from house to house easier?

Yes. The tight gaps and permanent shade provide safe routes for mosquitoes to move from one source to another without sun exposure.

Does the fishing harbour and corniche nearby increase the mosquito load?

Yes. The harbour and corniche have high humidity and standing water, mosquitoes may migrate from there into the quarter nearby.

How do we treat an old quarter without damaging the aged walls?

We focus on tanks and their openings, damp surfaces and shade sources, applying spray carefully to the outside of old walls to avoid structural harm.

How much does mosquito control in Harat Al Baharah cost?

It is set after the inspection, because the price follows the type of infestation, the size of the space, how far it has spread and the number of visits it needs. Send a photo and a description on WhatsApp and we will give you an estimate before we reach Harat Al Baharah.