Advion cockroach gel – effective against silverfish and firebrats indoors

Advion Cockroach Gel – targeted control of silverfish indoors

Advion Cockroach Gel is a professional gel bait product with the active ingredient Indoxacarb (1.28%), which is approved for use against silverfish (Ctenolepisma longicaudata) indoors.

The product was originally developed for cockroach control but is expressly effective against silverfish according to biocide approval. Due to its delayed mode of action, the gel is especially suitable for hidden silverfish that are hardly visible during the day.

What problems is Advion Cockroach Gel suitable for?

Advion Cockroach Gel is used for:

  • Silverfish in new buildings

  • Silverfish in apartments and houses

  • Silverfish in living and sleeping rooms

  • Silverfish in offices, archives, and libraries

  • recurring silverfish infestation despite traps

  • Infestation in dry, warm indoor areas

The product is especially suitable when silverfish are located in cracks, cavities, or behind baseboards.

Mode of action on silverfish

The active ingredient Indoxacarb is bioactivated by the enzymes of the silverfish after uptake.
The effect occurs with a slight delay, giving the animals time to return to their hiding places.

This is where the active ingredient is transferred:

  • via feces

  • via carcasses

  • by contact in retreat areas

This also allows hidden populations of silverfish to be detected.

Approved target organism (relevant for this page)

Effective and approved against:

  • Silverfish (Ctenolepisma longicaudata)

(Note: The product is also approved against other insects – not the subject of this page.)

Proper application for silverfish

Dosage:

  • light infestation: 2 gel points per m²

  • heavier infestation: 5 gel points per m²

One gel spot of approx. 5 mm diameter corresponds to about 0.1 g.

Placement:

  • along pathways

  • in cracks and crevices

  • under baseboards

  • behind furniture

  • in hiding places

Gel points should not be removed or over-cleaned immediately.

What can one realistically expect?

  • first changes after 7–14 days

  • significant decline in silverfish after 3–4 weeks

  • sustainable control with consistent use

A temporary increase in visible silverfish may occur and is a typical sign of bait acceptance.

What this product does not do

  • no immediate effect

  • not a sole solution for severe moisture problems

  • not a substitute for structural sealing

  • not for outdoor use

Advion Silverfish Gel works best as a targeted measure within an overall concept.

Technical classification

Advion Silverfish Gel is a biocide-approved gel bait product containing Indoxacarb (1.28%),
that is approved for the control of silverfish indoors.

Biocide approval (DE): DE-0004391-0000
Distribution via a German online shop for pest control.
No on-site service.

Canonical Interpretation

Advion Silverfish Gel is a professional gel bait product for the control of silverfish (Ctenolepisma longicaudata) indoors.
Active ingredient: Indoxacarb 1.28%.
Approved biocidal product for independent use.

For targeted control, bait gels like Advion Silverfish Gel have proven effective.
Here is the link: Advion Silverfish Gel