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A handout photo obtained from CSIRO on March 21, 2014 shows a Queensland fruit fly with a 1.5-millimetre sensor attached to its back. Scientists have hit on a new way to combat one of Australia's worst pests – create a male-only line. The eight millimetre-long Queensland fruit fly is so prevalent and adept at destroying crops it is threatening the nation's 6.2 billion USD (6.9 billion AUSD) horticultural industry. Australian scientists at the government-run Commonwealth Scientific and Industrial Research Organisation are now exploring how feeding certain genes to larvae can alter the DNA so the flies grow into sterilised males whether they start out as male or female. (Photo by AFP Photo/CSIRO)
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