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Spray Treatment for flies in Marlborough

Pest Control of Flies

House flies are not only a major nuisance when warmer weather arrives, but they are also strongly suspected of transmitting at least 65 diseases to humans. These diseases include serious illnesses like typhoid fever, dysentery, cholera, poliomyelitis, yaws, anthrax, tularemia, leprosy, and tuberculosis. It is crucial to be aware of the potential health risks associated with these common pests. In Marlborough, other types of nuisance flies commonly found are the House Fly, Cluster Flies, and Blow Flies. These flies can disrupt daily life and pose a threat to human health. To address fly infestations effectively, PestSmart offers comprehensive solutions. Their approach involves using a light internal spray in areas where flies tend to congregate and a thorough external treatment to target breeding sites. By taking proactive measures to control fly populations, you can protect your health and maintain a comfortable living environment. Trust PestSmart to handle your fly pest problem efficiently and safeguard your home from these disease-carrying insects.

Common types of Flies in Marlborough are:

Pest Control of Flies | PestSmart Marlborough, NZ

House Flies

The House fly adult is about 4-7.5 mm long, female larger than male. Mature larva is about 7-10mm. Adult face has 2 velvety strips, silver above and gold below; thorax has 4 narrow stripes; no pale spot behind head or rear tip of thorax; sides of abdomen usually pale; sponging mouth parts. Larva is eyeless, legless, tapered from rear to head, which is a pair of dark hooks. 

  • House flies are major carriers of disease and can infest all types of premises.
  • They are attracted to all types of food, including human food, pet food, animal feed, food waste and even faeces.
  • House flies are strongly suspected of transmitting at least 65 diseases to humans, including typhoid fever, dysentery, cholera, poliomyelitis, leprosy, and tuberculosis.
Pest Control of Flies | PestSmart Marlborough, NZ

Cluster Flies

Adult cluster flies, which are a little larger than common house flies’ and range in size from 9-12.5mm long. They are black with short, yellow hairs on their thorax and wings that overlap while resting. The eggs and larvae of cluster flies are very rarely seen as they are deposited into the soil near earthworm burrows. The larvae then feed on the earthworms. Cluster flies are considered a nuisance pest as they survive the winter by hibernating inside wall voids and attics inside our homes and other buildings. 

  • You may see cluster flies in your home in the early spring, as these pests are attracted to warmth and light. 
  • It is not uncommon for groups of cluster flies to gather near windows on bright, sunny days to try to escape.
  • While cluster flies are not harmful to humans and do not reproduce inside invaded homes, they are considered a nuisance due to their mass hibernation. 
  • Their collective emergence in spring results in swarms clustering around windows.
Pest Control of Flies | PestSmart Marlborough, NZ

Blow Flies

Adults are about 4-16 mm long, the size of a house fly, or slightly larger. Mature larvae are about 9-22 mm long. They have sponging mouthparts; antennae are feathery, at least on the bottom two thirds. Larvae are eyeless, legless, tapered from large, rounded rear segment to head, which is a pair of dark hooks. Adults are partly or wholly metallic blue, green, or dull brassy, sometimes black. 

  • Blowflies commonly gather around dead animals and are often discovered near meat processing plants and garbage dumps. 
  • They typically enter homes when they detect food indoors and will come from near and from far to feast, usually through any gaps and openings around the home.
  • Blowflies can spread bacterium that can cause severe diarrhoea and cholera, along with other pathogens that include plague, anthrax, and tuberculosis.

PestSmart Fly Control

A treatment for flies requires an inside and partial outside spray. It is important to note that no treatment will eliminate flies in your home or workplace, however a treatment will reduce the population and deter them from landing in treated areas. 


Areas where flies most like to land are window frames, door frames, upper wall areas, light fittings and lamps. 


We apply a more intensive treatment to the outside of the house, decks, window and door framing, ledges and pergolas where flies like to land. This residual treatment will continue to effectively control flies following the treatment for up to six months.

Are the treatments safe for my family and pets?

We only use products that are (EPA) Environmental Protection Authority approved and we use them to exact specifications every time. Your family’s safety is our number one priority.

What do I need to do to prepare?

Before your treatment we’ll email you a list of preparation instructions and details on after treatment care and your technician will take the time to check everything is done when they arrive on treatment day.

Fly treatment price guide:

Please click on the "Contact us" button for a free quote for a Fly treatment.


Please give us a call or complete our enquiry form so we can fully understand your pest problems and provide an accurate quote for your property.


Fly Pest Control for Blenheim; Picton; Koromiko; Rarangi; Taumarina; Seddon; Renwick; Spring Creek; Ward. Please enquire if you are in the Queen Charlotte Sound.

Contact us

For a no obligation quote or to make an enquiry

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