Very nice harvest of all the fruit Alyssa . Imperial mandarin is a beautiful tasting fruit,but need to eat with in a few weeks when ready.The apples from the shops usually are sprayed with a thin liquid wax to make them look more shiny and preserve them. Not to sure what the sticky is on your apples is, maybe just a natural substance that happens when they become super ripe. Apples become very sweet when the weather becomes cold, especially after a frost.l would love to taste avocados straight from the tree, only ever had from the supermarket.