Thursdays bad news

I hadnt really noticed that the nice green bush was changing colour!

This bush is by the side of our house and now looks like it has measles!
Yellow leaves with black stops over the right hand side of the bush then yellow in the middle of it and still green to the left.

I dont know what has upset it I cant see anything strangling it or cant smell anything odd to poison it (yes I was under the bush sniffing at one point...cold and damp but no smell).

So I am at a loss. I have asked the landlord to suggest something perhaps chopping it down so it can try again next year, a magic potion to make it better or dig the thing out..
I await his choice.