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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
Application
- The Peet-Grady chamber (1.8 m ร 1.8 m ร 1.8 m) is prepared.
- Insects are released under controlled temperatures of 19โ29ยฐC.
- The test product is applied as per label instructions, either as a space spray or a surface treatment.
- Knockdown of insects is recorded at different time intervals.
- After exposure, insects are collected and transferred to clean containers with proper food and healthy conditions.
- After 24 hours observation period, and KDโ โ, KDโโ, and final mortality data are recorded to determine efficacy.
- knockdown (KDโ โ / KDโโ ) and mortality are recorded.
- Provides simulated real-world conditions to test repellent products.
- Helps in identifying the efficacy of new formulations and active ingredients.
Turnaround Time
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 test
1. Chamber Preparation
- The Peet-Grady chamber ((1.8 m ร 1.8 m ร 1.8 m) is cleaned, dried, and inspected before each trial.
- Environmental parameters, including temperature and relative humidity are recorded.
- The chamber is sealed to prevent external airflow unless ventilation is part of the study design.
2. Test Insect Conditioning
- Test insects are selected based on species, age, sex distribution, and health status.
- The required number of insects is transferred and acclimatized to the chamber conditions prior to testing.
3. Product Application
The test product is applied according to the label-specified dose and method.
- For space sprays, the formulation is dispensed inside the chamber while the insects are present or immediately before their introduction, based on study requirements.
- For surface treatments, the product is applied to designated areas of the chamber and allowed to dry completely before insects are released.
4. Exposure
- Knockdown of insects is recorded at different time intervals
- All insects are collected and transferred to a healthy environment
5. Observation
- After exposure, insects are transferred to clean holding containers with appropriate food and environmental conditions.
- After 24 hrs observation period, Knockdown values (KDโ โ / KDโโ) and mortality are recorded.
- All data are reviewed to determine the performance of the test product.
- 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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