Aphids make 'chemical weapons' to fight off killer ladybirds

Cabbage aphids have developed an internal chemical defence system which enables them to disable attacking predators by setting off a mustard oil ‘bomb’, says new research published today.

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<p><a href="http://www.physorg.com/news103347224.html">Aphids make 'chemical weapons' to fight off killer ladybirds</a></p> <p>Cabbage aphids have developed an internal chemical defence system which enables them to disable attacking predators by setting off a mustard oil ‘bomb’, says new research published today.</p>