Japonica being eaten by what?

Hi, What's eating my japonica? What do I do for it? It's in a pot by the front door...
http://www.kodakgallery.com/ShareLandingReg.jsp?Uc=tn8tdv.9fj78sxj&Uy=-wusb3a&Upost_signin=Slideshow.jsp%3Fmode%3Dfromshare&Ux=0&UVd4732388460_905451237303
Thanks in advance,
Laura
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