When is the best time to fumigate stored grain? Ben White and Chris Warrick from GRDC’s Grain Storage team discuss three common fumigation timing strategies: pre-emptive fumigation after harvest, fumigation on insect detection, and calendar-based fumigation. Learn why gas-tight, pressure-tested silos are essential, how aeration cooling can improve storage outcomes, and how to balance fumigation timing with grain quality, market requirements, and buyer specifications.
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This article outlines best practice for determining when to fumigate stored grain, highlighting the importance of cooling, monitoring, and gas-tight storage. It explains the risks of fumigating too early, relying on calendar-based treatments, and poor sealing, while reinforcing that effective fumigation depends on correct timing, temperature, and exposure periods.
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Outside fumigation, there is no need to seal a silo – in fact, sealing a silo for long periods increases the risk of grain degradation and silo damage
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Grain storage specialist Ben White explains the purpose of sealable silos, when to seal them and when to leave them unsealed to prevent condensation issues.
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