The stored grain extension team have put together some key resources on setting up and storing grain in bunkers. Rather than re-invent the wheel, useful information resources from commercial suppliers of bunker tarps and equipment has been included.
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Appropriate Personal Protective Equipment (PPE) is essential for health and safety when fumigating with phosphine.
The phosphine label mandates the use of a full-face respirator with a combination particulate (P1) and phosphine gas cartridge filter along with elbow-length rubber gloves to comply with label requirements.
In this episode of the GRDC podcast, Chris Warrick from the Stored Grain Extension Team shares the most important steps growers can take to protect grain quality and reduce storage risks.
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Phosphine remains the most widely used fumigant in Australia’s grain industry due to its effectiveness, low cost, and residue-free status. However, increasing resistance among key insect pests highlights the need for strict adherence to best practice guidelines.
This comprehensive manual outlines:
1. Proper application methods across different storage types (silos, bunkers, sheds)
2. Critical factors such as gas concentration, exposure time, temperature, and moisture
3. Equipment for monitoring gas levels and ensuring safe fumigant handling
4. Strategies to delay and manage resistance, including use of sulfuryl fluoride and integrated pest management
Compiled by leading experts including Dr Manoj Nayak, Dr Joanne Holloway, Chris Warrick, and Patrick Wilson, this document is a valuable resource for growers, storage operators, and advisors working to maintain grain quality and market access.
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Key points
– Rotating phosphine fumigation with sulfuryl fluoride will protect against the development of phosphine resistance
– Sulfuryl fluoride can only be purchased and applied by licensed fumigators