With an increase in on-farm grain storage in recent years, the Grains Research and Development Corporation (GRDC) has invested in a range of extension material to assist growers.
The latest is a GRDC fact sheet, Grain Storage Fumigation – a guide, which outlines how to safely and effectively use phosphine to control grain pests.
The fact sheet covers key points of fumigation including:
- To control insects at all life stages the only option is to fumigate in gas-tight storage.
- Phosphine gas needs to reach, and be maintained at, a concentration possible only in a gas-tight storage.
- The total time required for effective fumigation ranges from 10 to 17 days, accounting for the minimum exposure period, ventilation and withholding period.
- 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.
To download the fact sheet, visit www.grdc.com.au/GRDC-FS-GrainFumigation
Rachel Bowman, Senior Consultant, Cox Inall Communications
07 3846 4380; 0412 290 673