Australia imports of France insect dung, better known as the dung beetles, to get rid forward very invasive flies in southern regions of the island-continent in the spring and summer, a-t- Friday was learned.

The problem with these flies back to the introduction of the first cattle in Australia by settlers, there are more than two centuries. Today, the country has nearly 30 million head.

"In the hundreds of millions of fresh dung deposited each day, billions of flies could develop," said Jean-Pierre Lumaret, professor emeritus at the Université Paul-Valéry Montpellier III, key player in the French-Australian collaboration.

These parasites are present in such large numbers in some areas of Australia need to cover his head nets, similar to mosquito nets.

"The flies seek moisture in sweat, saliva, secretions of the eyes, injuries etc. When hundreds revolve around a person, they are seriously annoying" describes Bernard Doube, which dung from farms near Adelaide, South Australia.

Two dung insect species were collected and tested high in Montpellier, where the Australian national research agency, CSIRO, has a laboratory. "We come from France hundreds of dung beetles. They stayed in quarantine for about nine months," said Bernard Doube.

These introductions are "hard to achieve" framed "very strict quarantine process to avoid introducing Australian cattle parasites or other disease," said Jean-Pierre Lumaret.

Dung beetles "compete" flies: they disrupt their eggs, dry feces of cattle which is unfavorable to flies and recycling livestock manure, "depriving them of their food flies," explains the professor. "But for that you need a lot of dung beetles active in the same dung," he adds.

Trials have started in Western Australia and others will take place in spring 2017, between September and December. "Within 2-5 years, tens of thousands of dung beetles will be released in farms in southern Australia," said Bernard Doube. "In a decade, they should find in large quantities in many regions and thus solve the problem of flies," he hopes.