Posted: 15/04/2012 at 12:32
The rose has aphids, or greenfly (which can be green, pink, black or white). They will breed very rapidly. They suck the sap out of the leaves, thus making them distorted and weakening the bush.
Control - in an ideal world, birds and ladybirds. Otherwise, there are many bug sprays available at the garden centre, or you can make a very weak solution of soapy water, put into a sprayer and spray them off with that.
Can't see the spots on the other photos clearly enough to comment, sorry.