My loquats trees have some kind of disease

Hi permies,
I was hoping someone could help me identify the issue with my loquat trees. The fruits are going brown and not ripening, and the leaves are brown too. Can anyone identify the issue? What can I do to rectify the problem? I live in Portugal so it's late spring, and healthy loquat trees have just fruited.
Here are some pictures: Thanks for your help  

In my experience, the most common problem with loquat trees is fire blight. Here is California, we've had a few bad fire blight years, and my loquat had similar damage to yours. I removed all the damaged foliage, taking care to clean my shears after every cut, and dispose of the cuttings off site. In my climate, loquats do very well, and generally it's only the younger trees that have a problem. I had no fruit this year, because I had to prune so severely. But now the tree looks much better. Hopefully, others will weigh in with their experience.