Factory Mosquito Spraying: 6 Night-Shift Workers Down With Chikungunya and an Audit in 10 Days

Factory Mosquito Spraying: When a Tiny Mosquito Nearly Stopped an Entire Production Line

At 2 a.m. on a Tuesday, Mr. Prasert, 45, production manager of a food-processing plant in Samut Sakhon, got a tense call from his night-shift supervisor: "Three more workers out — high fever, joint pain so bad they can't walk. That's six this week." Hospital tests agreed: chikungunya, carried by Aedes mosquitoes. All six worked the same night zone near the drainage channel behind the production building.

That week, the packing line dropped 30% of capacity, a major export lot shipped two days late — and in ten days, a key European customer was arriving for a full GMP audit.

The Hidden Cost of Mosquitoes in a Factory

• Manpower: Chikungunya joint pain lasts weeks; long sick leaves and surging overtime for replacements.
• Production: Six missing operators = 30% capacity loss plus late-delivery penalties.
• Compliance: GMP/HACCP auditors treat disease vectors as a major non-conformity that can fail certification.
• Morale: The staff chat filled with "is this factory safe?" — some asked to switch shifts.

Factories are prime mosquito habitat: treatment ponds, drains, stacked tires and rain-filled pallets are breeding grounds maintenance teams overlook.

Why the Cheap Fogging Truck Failed the Audit

• No breeding-site survey — mosquitoes returned in three days.
• Unknown chemicals, no MSDS — contamination risk in a food plant.
• No documentation at all to support a Pest Control Program for GMP/HACCP.

The Professional Fix: WHD's Factory Mosquito Spraying Service

Procurement chose the mosquito spraying service of World Health Disinfection (WHD). A free survey found 14 breeding sites — drains, the treatment pond, old forklift tires. The team fogged with WHO-standard ULV (droplets under 20 microns) using Deltamethrin 2.5% during the weekend line stop, plus a vehicle-mounted fogger covering the entire 12-rai perimeter.

10 Reasons Factories Choose WHD

1. Audit-ready paperwork: chemical data, certificates, annual plan, post-service reports.
2. WHO-standard Deltamethrin 2.5%, safe for food facilities once dry.
3. Sub-20-micron ULV droplets reach drains and under-machine dead zones.
4. Vehicle-mounted foggers cover multi-rai sites in one pass.
5. Public-health-trained crew in full PPE, factory-safety compliant.
6. Off-production-hours scheduling — zero line impact.
7. Free breeding-site survey with risk report for maintenance.
8. Scheduled re-treatments break the mosquito life cycle all rainy season.
9. No harsh residual smell — staff return within 30–60 minutes.
10. Free quotation and annual contracts that fix your budget.

Before / After

Before: 6 chikungunya cases, 30% capacity loss, no pest-control documents, mosquitoes swarming the canteen at dusk.

After: Mosquitoes visibly down within a week, zero new cases, the audit passed — the inspector praised the Pest Control Program as "systematic and traceable" — and the factory signed an annual WHD contract.

"I used to think mosquito spraying was trivial. We nearly failed an audit over one mosquito in the canteen. WHD showed me this is a professional's job." — Mr. Prasert, Production Manager

Our 5-Step Factory Service

1. Book: Call or LINE — free assessment.
2. Survey: Documented breeding-site mapping.
3. Spray: ULV + vehicle-mounted fogging, scheduled around production.
4. Wait 30–60 min: Ventilate and return to work.
5. Report: Service documents for your GMP/HACCP file.

Will spraying affect food production? We spray outside production hours and shield food-contact points; once dry the treatment is safe.

How often should a factory spray? Monthly in the rainy season, every 2–3 months otherwise, guided by survey results.

Don't Let One Mosquito Stop Your Whole Factory

See Our Factory Mosquito Spraying Service — Click Here

Call 065-556-6294 | LINE: @whd268

Related: Factory Disinfection Service | ULV Sprayers | Reference: WHO – Chikungunya

#FactoryMosquitoControl #MosquitoSprayingService #ULVFogging #ChikungunyaPrevention #PestControlThailand

factory mosquito spraying service, food factory pest control Thailand, ULV fogging, chikungunya prevention, GMP pest control program