Pharaoh ants – small insects, big problem

October 21, 2025
Pharaoameisen – kleine Insekten, großes Problem
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The Pharaoh ant is tiny, just two millimeters in size, yet it can cause significant damage. Its colonies often consist of multiple queens, allowing it to reproduce rapidly and making it difficult to control. This ant species especially thrives in warm buildings such as kitchens, hospitals, hotels, or residential homes.

An infestation is not only annoying – Pharaoh ants are considered hygiene pests because they can spread pathogens. Conventional home remedies or sprays are usually ineffective and can even worsen the infestation because the colony splits and forms new nests.


How to recognize an infestation

Pharaoh ants are small, pale yellow to reddish, and form conspicuous trails – usually along walls, heating pipes, or in kitchen areas. Often, nests hide in warm, hard-to-reach places such as cavities, electrical installations, or under baseboards.


Effective control – here’s how to do it right

  1. Thorough hygiene: Do not leave food residues exposed, clean work surfaces regularly, and dispose of garbage sealed.
  2. Seal entry points: Seal cracks, joints, and cable passages to prevent new nests.
  3. Use targeted baits: Instead of sprays, feeding baits are the most effective method. The ants carry the active ingredient into the nest, where it affects the queens and larvae.
  4. Be patient: Sustainable control takes several weeks – only consistent action leads to success.


Our product recommendation

For targeted control of Pharaoh ants indoors, we recommend the BIOPREN Pharaoh Ant Bait.
The product contains the active ingredient S-Methoprene, a growth regulator that stops the development of ant larvae and prevents the queens from laying eggs. This gradually starves the colony until it collapses.

Advantages of the BIOPREN Pharaoh Ant Bait:

  • Ready-to-use bait stations – simply place, no mixing necessary.
  • Transparent stations to monitor bait acceptance.
  • Effect works directly in the nest – not just on the surface.
  • Ideal for use in kitchens, hotels, hospitals, and living spaces.

Application:

  • Place two bait stations per 20 m² area along the trails (not directly on the ant trails).
  • Leave the bait stations undisturbed for at least three months.
  • Do not use other insecticides simultaneously to avoid impairing the effect.


Conclusion

Getting rid of Pharaoh ants requires patience, targeted action, and the right product. With the BIOPREN Pharaoh Ant Bait, you have an effective means at hand to permanently eliminate the infestation. In combination with careful hygiene and regular monitoring, the problem can be solved sustainably.

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