cotoneaster cornubia leaves go brown, and holes

Hi, there, my cotoneaster cornubia shrub leaves go brown, dry and the from tips they start to form holes. Why is this? My soil is a loamy soil. I covered the shrub with mulching throughout winter and spring. Please could you help me!!!

 

Hi
It sounds that you have "fire blight" bacterial infection , if its not SEVERE only effects the leaves , no cure as in a spray.
You need to prune out the leaves and branches and give a good tidy up on the ground re mulch with fresh compost and give a general fertiliser to give it a helping hand , dont throw any of the leaves or branches on the compost heap either burn or bin them , the hard winter hasnt helped as a lot of plants are stressed after all this long and misserable winter that has effected most of us as well .
If you grow apples /pears it will it can effect them as well but as with all gardening if growing well and a bit of pampering through the summer all should be well
I wish I could give you happy news

Spruce