TN 500


APVMA Approval Number: 70464/63489


Insecticide – Repellent – Detergent – Deodoriser – Environmental Control Agent


Specifically designed for the control of Lesser Meal Worm (Black Litter Beetle) in the Poultry lndustry.

An organically based product - Biodegradable and is non-accumulative in soil or water
at recommended dilutions.

  • Harmless to poultry even if ingested at recommended dilutions.

  • No interference with poultry dietary programs.

  • Completely soluble in water.

  • Non-hazardous at recommended dilutions; safe to use in all circumstances and gentle enough for use on any surface.

  • No special skin protection or respirator is necessary at recommended dilutions.

  • No significant ingredient is classified as carcinogenic as per the product SDS.

  • Contains no:
      - Caustic compounds
      - Petroleum solvents
      - Soaps
      - Abrasives
      - Acids

  • Natural sustained deodorising properties.

  • No quarantine period is necessary following its use unlike Poison Schedule 6 Pesticides. Therefore farm personnel can enter the sheds immediately after treatment and litter can be placed, making it possible to save a full day in the shed cleaning process.

  • No restrictions on the number of treatments in any period.

  • Creates an environment repellent and toxic to insect pests which will avoid the areas where TN 500 is applied.

  • Primarily not a nervous system reactant as compared to Schedule 6 Poisons currently used and therefore does not kill insect pests via the same process as seen with S6 poison insecticides.

  • Is strongly hydrophobic and thereby adheres to and penetrates the oily/resinous surface of insects.

  • No immunity or occurring resistance and therefore no requirement to alternate the use of insecticides.

  • Developed and marketed by Australian companies.

  • The only product marketed meeting all these criteria.

Darkling Beetle Infestations - A New Method of Control

by Byron Sten, Editor - "The Drumstick - Keeping Poultry Growers Informed about their Industry" Vol 33, No 3, Summer 2017

"Managing darkling beetle infestations has proven to be difficult in recent years. Research in Australia has shown that traditional industry insecticides are not effective when applied to broiler shed floors, and this situation is made worse by strong and widespread insecticide resistance that occurs in broiler shed beetle populations.  UNTIL NOW…. TN 500 – a new method to manage darkling beetle and lesser mealworm infestations.


  • As explained, TN 500 is not a nervous system reactant as compared to Schedule 6 Poisons currently used and therefore does not kill insect pests via the same process as seen with S6 poison insecticides.

  • Due to this unique action process the beetles’ exterior surface needs to make sufficient contact with the product to penetrate the insect exterior and destroy it.

  • Unlike S6 Poisons, all dead beetles may not be visible as many will crawl away to hide and then die once TN 500 penetration has occurred.

  • The essential method to achieve the expected kill rate is not by increasing the concentration but by applying the recommended volume of diluted product. In the case of pre-existing heavy beetle infestations, an increased volume of TN 500 may be necessary for the initial applications. Once infestations are reduced the recommended TN 500 volumes above can be used in the regular treatment maintenance plan.

  • Reducing the volume of the diluted product used will noticeably decrease the kill rate against beetles as the product may not penetrate sufficiently into cracks and crevices to make adequate contact with beetles.

  • The volumes, dilution and application methods recommended by Filchem Australia should be adhered to when using TN 500, otherwise Filchem Australia cannot ensure a successful outcome.

  • TN 500 is an Australian Pesticides and Veterinary Medicines Authority (APVMA) approved insecticide. Approval Number 7046/63489.


Most insecticides are used as part of an integrated management program to extend the field efficiency of insect control agents and to help minimise the build-up and carry-over of resistance to insect populations. TN 500 is primarily not a nervous system reactant which thereby removes the issue of resistance through genetic variation. Therefore, there is no requirement to alternate the use of any other insecticide when using TN 500. Its natural but powerful synergisms are reflected in the effectiveness of this new generation approach to selective pest control.


Through the use of our exclusive Australian Native Essential Oils and Plant Based Eleo Esters, TN 500 provides a repellent environment and is toxic to crawling insect pests. This breakthrough in surface chemistry provides powerful penetrating properties to the spray solution.

These purpose built compounds are strongly hydrophobic carrying the actives through all moisture barriers to the surface of the insect where they adhere to and penetrate their oily/resinous surface, allowing more efficient access for the actives.


TN 500 used as a detergent is a gentle yet potent shed wash, highly effective and non-hazardous (at recommended dilutions) in assisting Black Litter Beetle control. It can be used at a lower concentration when used as a shed wash only.


TN 500 takes advantage of powerful deodorising properties from Australian native essential oils providing efficient, long lasting natural deodorising to all treated surfaces. A fresh fragrance of the Australian bush lingers long after use, giving a clean and ‘cared for’ appeal to all treated areas.



  • A more effective insecticide replacement for the Schedule 5 & 6 Poisons currently used within the industry in an attempt to control infestations of Lesser Meal Worm (Black Litter Beetle).

  • TN 500 creates a repellent environment and is toxic to insect pests.

  • A versatile and efficient poultry shed wash.

  • Maintains a lasting deodorising effect.


Day 1 Remove chickens from shed.

Day 2 Remove litter from shed and sweep floor.

Day 3 Wash shed interior (walls, floors and ceiling) with Filchem On Guard cleaning concentrate using high pressure water at a dilution of 1 part On Guard to 100 parts water (i.e. 1:100).

Day 4 Apply TN 500 to shed interior using a large droplet spray at a dilution of 1 part TN 500 to 50 parts water. Dowse shed walls, floors and ceilings thoroughly, until 'run off' occurs. External areas of shed perimeter should be dowsed to a distance of 1 metre from shed walls.

Day 5 New litter can be applied to shed.

Poultry Farm owners and managers often have differing clean out practices. Through our personalised services we can tailor the application procedures to each farm as required, to achieve cleaner sheds and the most effective outcomes against Black LItter Beetle infestations.