Grain Storage: Grain Fumigation Guide

In order to kill grain pests at all stages of their life cycle (egg, larva, pupa, adult), phosphine gas needs to reach, and be maintained at, a concentration possible only in a gas-tight storage.

Key Points

• To control insects at all life stages the only option is to fumigate in a gas-tight storage.
• Cool grain temperatures require a longer fumigation period.
• Aeration fans fitted on gas-tight silos provide a number of benefits including a shorter ventilation period following a fumigation.

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Note: Originally published March 2013, republished January 2014 by popular demand

• 211.77 kbGrain Storage fact sheet: Grain Fumigation - a guide (low resolution version)In order to kill grain pests at all stages of their life cycle (egg, larva, pupa, adult), phosphine gas needs to reach, and be maintained at, a concentration possible only in a gas-tight storage.