You may have to explain the top photo!
The Elm Leaf beetle is a pest that spreads: "In 1989 however, the elm leaf beetle Pyrrhalta luteola, was discovered damaging elms on Victoria’s Mornington Peninsula. This pest has since spread to the Melbourne metropolitan area." and "As the beetle is a hitchhiker, it is expected to continue its spread throughout South-Eastern Australia, unless it is checked by some means."For more info see:http://www.global-garden.com.au/burnley/mar00dte.htmandhttp://home.vicnet.net.au/~fote/elb.html