Q.Apple Maggot Problems
we have 2 honeycrisp apple trees and tried all natural things to prevent Apple maggots, want help to control them.

Certified GKH Gardening Expert
Likely, you will need to turn to your local extension service for chemical control of these pests! This link will help you to find the closest to you:
https://www.gardeningknowhow.com/extension-search
For more information on treating them and preventing them, this article will help:
https://www.gardeningknowhow.com/edible/fruits/apples/apple-maggots.htm