In the UK the two main species of Pest Ant we come across are the Common Black/ Garden Ant and the Pharoah’s Ant, both cover a wide area in search of food, and once found are seen trailing to and from their nest.

The Black/ Garden Ant does not pose any health risk to humans,  but they can be a serious nuisance when entering buildings.

Black Ants  (lasius niger)

  • LIFE CYCLE:   50 – 70 days, each Black Ant colony has around 5,000 Worker Ants  and a single queen. A queens life span can be up to 12 years.
  • LENGTH:   2mm – 5mm.
  • APPEARANCE:   Black / Dark brown.
  • HABITAT & HABITS:  Normally found nesting under paving, in and around wall/ floor areas, etc

The Pharaoh’s Ant is however, a different matter, they pose a health risk to humans by transmitting pathogens due to feeding in unhygienic areas such as  drains and food waste bins, etc making infestations in sterile environments particularly important to control.

  • LIFE CYCLE:    38 – 45 days, each Pharoah’s Ant colony can have multiple queens, each laying up to 400 eggs over her lifetime.
  • LENGTH:   1.5mm – 2mm.
  • APPEARANCE:     brownish yellow in colour and significantly smaller than the Black Ant.
  • HABITAT & HABITS:   In most cases in the uk,  Pharoah’s  Ant colonies are found indoors as they need warm humid conditions to survive, they can be found in a variety of locations such as hotels, residential  blocks, food handling premises, hospitals, etc. Gaining control of a Pharoah’s Ant infestation can be a long process due to the fact they are prone to splinter away from the initial colony.

Pharaoh's Ant  (Monomorium Pnaraonis)

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Pest Control in Reading

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We appreciate that some of our customers require a discreet service, in order to meet this need, we only use non sign written vans and if requested will also attend with non-branded uniform (ID carried)
You can rest assured knowing your pest problem will be resolved with minimal risk to non target species and the least impact on our environment. Pesticides are only used when necessary and are 100% biodegradable.
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Steve Tomkins  proprietor at
Thames Valley Pest Control

1 Naylors Barn, Station Rd





0118 336 0338


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