Q.Small flies in apple core
My Malling Kent dwarf tree (35yrs plus) bears many pounds annually..This year EVERY apple was brown and burrowed inside and some had a tiny fly in the core. Could you pls advise me what it may be and how to cure it…I also have an Orange Pippin which was somewhat less affected. Many txs James Scott

Unfortunaely, the only sure fire way to get rid of these is by chemical means. Here is some more information in the link after. You can click on the link within to take you to a search for your extension service. They will be able to find the chemical for you. Here is the article: https://www.gardeningknowhow.com/edible/fruits/apples/apple-maggots.htm