We moved a 3 year old pear tree from my mum's garden to ours back in March, and it seemed to do OK over the summer - plenty of leaves, lots of blossom and even 4 pears grew. Over the last week though, it's gone really down hill and has lost most of it's leaves, those that are left are very withered. The pears are still hanging on though!

Any ideas what it could be, or is it normal for this to happen this time of year?

thanks