- Order vials with stored product insect larvae
LIVE INSECT BIOASSAYS: Move from Assumption to 100% Certainty in Fumigation Success.
The Critical Second Dimension: Biologically validate the lethality of your fumigation to safeguard compliance and prevent costly re-fumigation.
Highlights
Risk Mitigation
Eliminate the uncertainty of fumigant gas stratification and absorption. Prove that the required lethal fumigant dose was achieved in the most difficult-to-penetrate zones.
Irrefutable Compliance
Generate hard, biological data to satisfy the strictest international regulators, supply chain partners, and quality assurance and food safety auditors.
Prevention of Financial Loss
Avoid devastating costs associated with failed fumigation, cargo rejection, logistical delays, and re-fumigation expenses.
Scientific Validation
Provides a direct, real-world correlation between your fumigant gas application and the actual mortality of target stored-product insect pests.
The Gap in Your Fumigation Process
For too long, fumigators have relied solely on Concentration-Time (Ct) monitoring to assess fumigation efficacy. While essential for process control, electronic sensors in fumigant monitors only provide Proof of Potential, as they measure gas concentration at a single point. Still, they cannot account for real-world variables like:
- Gas Stratification: Temperature and density variations create non-lethal pockets.
- Commodity Absorption: The treated commodity absorbs fumigant gas, lowering its concentration.
- Probe Placement Error: Fumigant monitor readings reflect accessible areas rather than the deepest stored-product insect harbourages.
Introducing the GPA Live Insect Bioassay Kit: Proof of Kill
Our standardised, ready-to-use kits are sealed vials containing laboratory-reared, resilient pest species—chosen for their hardiness and ability to represent the most difficult pest life stages (e.g., highly tolerant strains of Tribolium castaneum (Red flour beetle), Lasioderma serricorne (cigarette beetle), or Ephestia cautella (almond moth)).
How Live Insect Bioassays Work?
- Placement: Strategically place the vials inside a fumigation enclosure in the most challenging locations (deep within stacks, in cold spots, or far from gas inlets).
- Exposure: Expose the bioassay vials to the full fumigation cycle alongside your commodity.
- Assessment: Post-fumigation, retrieve the vials and monitor them for 24–48 hours. 100% mortality in the bioassay insects provides definitive, biological evidence that the required lethal fumigant concentration penetrated the most difficult areas.
Insect bioassay data is the ultimate affirmation of your fumigation’s efficacy, aligning perfectly with the GPA mission: delivering maximum certainty in Pest Monitoring and Prevention.
Standardised & Sealed Cages
Pre-packaged, ready-to-deploy Kits that ensure minimal handling and consistent results.
- Certified Pest Strains: Utilising specific, well-documented, resilient stored product insect species to represent a 'worst-case' scenario for lethality testing.
- Viability Guarantee: Kits are shipped with strict temperature and environment controls to ensure 100% viability before placement.
- Comprehensive Assessment Guide: Includes clear protocols for retrieval, holding period, and mortality assessment.
- Species Availability: Kits available for common threats, including cigarette beetles, red flour beetles and almond moths. Also available for rice weevils, lesser grain borers, saw-toothed grain beetles, pulse beetles, and rice moths.
Live Insect Bioassay Kit Specifications
| Attribute | Live Insect Bioassay Vial Value |
|---|---|
| Vial Diameter (approximate) | 20 mm |
| Vial Height (approximate) | 55 mm |
| Shelf life | Three months (insects shall live for this period) |
| Gross weight (vial + fee + insects) | 6 to 7 gm |
| Insect feed used | Wheat Flour |
| Number of insects | 20 per vial (beetles) or 10 per vial (moths) |
| Insect type (anyone) | Cigarette Beetle (CB), Red Flour Beetle (FB), Almond Moth (AM) |
| Other stored product insect types available on request | Rice weevil (RW), Lesser Grain Borer (LGB), Saw Tooth Grain Beetle (STGB), Pulse Beetle (PB), Rice Moth (RM) |
| Number of insects per vial | CB and RFB – 10 adults – 10 larvae; AM – 10 larvae |
| Ordering unit | 25 vials |
| HSN Code | 39269080 |
| Dispatch mode | Courier |
Frequently Asked Question
Everything you need to know about Live Insect bioassays
1. Why can't I rely only on my existing fumigant gas monitor for verifying fumigation efficacy?
2. Which insect species are included in the kits?
We select stored product insect species known for their resilience and resistance, such as cigarette beetles, red flour beetles and almond moths. These insects are intentionally used as bioindicators to demonstrate that the fumigant dosage is lethal even to the toughest insects.
3. How do I handle and dispose of the live insect bioassay vials?
Our kits come with strict, easy-to-follow instructions. We designed the kits for safety and ease of use. Post-fumigation, the vials with the bioassays must be handled and held for the required observation period to determine insect mortality. As they only contain wheat flour and dead insects, you may dispose of the vials and their contents in the trash.
4. Are bioassay results accepted by international auditors/regulators?
Yes. Bioassays provide the most compelling, empirical proof of fumigation efficacy. They are widely recognised by international quality assurance bodies and can significantly strengthen your audit trail and compliance documentation, particularly for high-value or highly sensitive shipments.
5. How long can I store and use the Live Insect Bioassay Kits?
You can store the bioassay kits at room temperature for up to 3 months and use them at any time during that period. We have established that the wheat flour in the kit can sustain the live insects for three months. If there are gravid adult female cigarette or red flour beetles, they may lay eggs in the wheat flour, and additional larvae, in addition to those placed by us in the vial, may be present after long-term storage beyond two weeks.
6. Can you customise the insect species in the Kits?
Yes, we provide customers with the flexibility to choose the life stage (adults versus larvae) and the species (either one or more within a Kit) from among the eight species shown in the specification. Further, we can create bioassay Kits for other stored-product insect species based on customer requirements.