Home > Grainair grain aeration bunkers provide a viable insect resistance solution

Grainair grain aeration bunkers provide a viable insect resistance solution

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With grain prices weakening on the back of a strong Australian dollar there is an ever-increasing demand for farmers to work smarter and think outside the circle to remain in the black.

Several issues have emerged as direct threats to the viability of the Australian grain industry, one of which is insect resistance. Grainair now has a solution to this problem, in their grain aeration bunkers.

Most states of Australia are reporting insect resistance to Phosphines in excess of 48%. As a nation of grain growers and handlers, the Australian grain industry is being rocked by a growing tendency to apply far too stronger doses of Phosphines to grain in order to kill the insects that infect it.

Continuing to use Phosphines in this manner is placing the Australian grain industry under threat, given that a replacement for Phosphines has not been found. Couple that with soaring grain handling and production costs, and most grain producers find themselves battling to make ends meet.

Over the last year there has been extensive research conducted behind the scenes with the sole purpose of coming up with a common sense solution that will solve both the issue of insect resistance and a common sense approach to on farm storage that will not break the bank.

A solution that makes sound economic sense is now offered in a small grain aeration bunker system that can be built as small as 350 tonnes, which can be added to by the panel and built as large as required. These bunkers are designed around existing farm augers to elevate the need to purchase additional equipment to service the system.

The grain aeration bunker can be utilised in a kit form complete with tarps aeration and insect kill grain. Service agreements are also available for those who prefer a third-party to service and maintain their grain.

Grain aeration is the single most effective solution to avoiding increased use of pesticides and the degradation of pesticide effectiveness. The Grains Research and Development Corporation has found that the combination of good hygiene plus well-managed aeration cooling, overcomes 85% of storage pest problems. They also say that pest control should be a planned solution.

Bunkers have long been regarded as a poor method of storing grain. However, aeration can now offer total control of grain. Grain aeration bunkers developed with axial fans and a new type of virtually indestructable air ducting, polyurethane aeration pipe, are at the forefront of temporary storage in Australia and incorporate a robust state of the art control and monitoring.

Freshly harvested grain usually has a temperature around 30°C, which is an ideal breeding temperature for grain pests. This high moisture grain should be dealt with promptly by aerating, blending or drying. Grain aeration fans fitted to stores can rapidly reduce grain bunker temperatures.

Studies have shown that rust-red flour beetles stop breeding at 20°C, lesser grain borer at 18°C and below 15°C all insects stop breeding. To this end, grain growers should aim for grain temperatures of less than 23°C in summer and less than 15°C in winter.

Grain should also be aerated as soon as it is placed into storage, and for the most reliable of results, using an automatic controller to run the fans is recommended.

Grainair grain aeration bunkers promote uniform, cool and dry storage conditions. This should be a key strategy for any business looking to maintain grain quality and market value.

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