Is my Apple Tree sick ?!?!?! (pictures)

Ok so my apple tree has started to blossom. But the leaves are worrying me. The flowers themselves are fine, but SOME of the leaves have lots of little red dots on them :[



Why is this ???

Where on others it's fine with no red dots.



Someone please tell me why this is happening? I don't remember them doing this last year, but then again I wasn't so interested in gardening so may not of checked them at this stage.

 

i have the same problem on my tree but it still produces nice healthy apples. i have no idea what this problem is and would like to know

 

Sky

Those spots look like some kind of rust to me. Trees get all kinds of spores and rusts and can usually tolerate them without too much harm. Just keep an eye on it. If it gets really bad later in the year e.g. causing leaves to fall off, you might need to spray but I wouldn't expect that to be necessary.