Peet-Grady Chamber Test / Chamber test / Modified chamber test

Assess the efficacy of insecticide products that are intended for indoor use

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Quick understanding of the test

Peet-Grady Chamber Test - Assess the efficacy of insecticide products that are intended for indoor use

Peet-Grady Chamber Test evaluates the efficacy of insecticide products intended for indoor use against various insect pests.

Application

Applicable for testing insecticides such as coils, vaporizer mats, liquid vaporizers, ambient emanators, and aerosols.
  • A certain amount of the test product is introduced into the Peet Grady chamber.
  • Next to the chamber, experimental huts are placed and treated with the test product, a negative control, and a positive control.
  • Volunteers present in the huts serve as attractants for mosquito entry. 
  • At the end of the test period, the knockdown and mortality rate of the mosquitoes are calculated.

Turnaround Time

The test takes approximately 2-3 weeks to complete.
The product efficacy is determined by measuring the knockdown rate, mortality rate, and time taken for insects to be affected by the product.

Passing criteria

Knockdown efficacy: >80%

Mortality after 24 hours: >90%. 

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Abstract

The Peet-Grady test chamber is employed to assess the efficacy of insecticide products that are intended for indoor use. This test is primarily applicable for coils, vaporizer mats, liquid vaporizers, ambient emanators, and aerosols.

Peet Grady Chamber specifications

  • The Peet Grady Chamber is an airtight room, having dimensions of 180 cm x 180 cm x 180 cm.
  • The chamber must be washed and dried prior to testing the each replicate to avoid chemical contamination. 
  • The temperature of the chamber is maintained between 19-29ยฐC. 
  • If efficacy at high temperatures is claimed, then the test will be carried out at a temperature >30ยฐC.
  • A control treatment without biocide is included in all laboratory trials.
  • A certain amount of the test product is introduced into the chamber.
  • Next to the chamber, experimental huts are placed. 
  • Each hut will be treated with a test product, a negative control, and a positive control, respectively.
  • Volunteers present in the huts serve as attractants for mosquito entry.
  • At the end of the test period, the knockdown and mortality rates are calculated.

Importance of Peet Grady Chamber test

Insect-borne diseases pose significant challenges to public health worldwide. Additionally, the emergence of insecticide resistance is another challenging concern as insects are less susceptible to currently available vector control measures and insecticides/biocides. Hence, it is important to develop stringent and standardized approaches for determining the effectiveness of new active ingredients or formulations before market release for effective eradication of insects and vector disease control.

Peet-Grady chamber test plays a valuable role in ensuring the efficacy of insecticide products.

Conclusion

Need assistance with insecticide testing for your products? MIS entomology experts are here to help you.

At MIS, we offer a complete range of entomology testing services for various industries manufacturing insecticide products for domestic, agricultural, vector disease control, and industrial use.

We have a team of entomology experts who have extensive experience in developing testing protocols and analyzing product efficacy as per customer requirements.

Additionally, we also perform various other tests such as Room Test, Tunnel Test, Olfactometer Test, Bed Bug Product testing, and much more.

To get a quote on the Peet-Grady chamber test or want to know more about our entomology testing services, talk to our experts here.

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