Apple tree problem
hi all, I am having a problem with my young Apple tree. It’s a Kidds Orange Red which I believe is a variety of Cox Golden Delicious according to the label. I have attached an image of the damage being caused to the young fruit and was wounding if anyone could shed light on the cause and possible solution

0
Posts
https://www.rhs.org.uk/advice/profile?PID=489
ive just got home and sliced one open and that’s exactly what it is.
many thanks
Other term is simply maggots