Commodity Fumigation

ChemicalLicense Required
Effectiveness:
Cost Level
High
Environmental Impact
High
Resistance Risk
Low
Target Pests
4 species

Target Pests (2)

Common NameScientific NameCategory
Rice WeevilSitophilus oryzaeStored Product Pests
Granary WeevilSitophilus granariusStored Product Pests

Application Method

Fumigate bulk commodities (grain, nuts, dried fruit, tobacco) in silos, bins, ships, or sealed chambers to eliminate all insect life stages. Seal commodity storage container gastight using tarps or built-in sealing systems. Introduce phosphine tablets or gas at calculated dosage based on commodity volume, temperature, and moisture content. For grain in silos, use recirculation systems to distribute gas evenly. Maintain fumigant exposure for 3-10 days depending on temperature and target pest. Monitor gas concentrations throughout treatment. Requires specialized fumigation training and equipment. Critical for export commodities requiring phytosanitary certification. Most effective method to treat bulk commodities where residual insecticides prohibited or ineffective.

Timing

Schedule when commodity can be held without movement for full fumigation and aeration period (7-21 days total).

Frequency

As needed when insect infestation detected in commodity or for quarantine compliance. Preventative fumigation for export certification.

Preparation Required

Calculate commodity volume and tonnage. Verify gastight sealing. Test for leaks. Calculate phosphine dosage. Have gas monitoring equipment ready. Develop safety plan. Obtain permits.

Follow-up Required

Aerate commodity completely per label requirements. Test for fumigant residues if required. Remove tarps and warning signs. Sample commodity for live insects. Provide fumigation certificate for export if needed.

Safety Precautions

  • Requires fumigation license and specialized training
  • Phosphine extremely toxic and flammable
  • Lethal gas - strict exclusion zone required
  • Self-contained breathing apparatus required for entry
  • Post warning signs
  • Monitor gas levels continuously
  • Complete aeration before commodity movement or sale
  • May leave residues requiring testing
Important Disclaimer: The information provided in this knowledge base is for educational and reference purposes only. Pest management professionals should always consult current product labels, Safety Data Sheets (SDS), manufacturer instructions, and applicable local, state, and federal regulations as the definitive source of truth. Product formulations, application methods, safety requirements, and regulations may change over time. This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.