Q.Is There a Liquid Solution you Make to Pour Around Tree Trunk?
The tree is around 10 or more years old. Someone told me to
make a mixture of something (I can’t remember what) and pour around the tree trunk a few feet out in circumference. What is this liquid and how to make it?

These articles should help: https://www.gardeningknowhow.com/edible/fruits/apricots/apricot-tree-pests.htm
https://www.gardeningknowhow.com/plant-problems/disease/shot-hole-disease-fungus.htm
https://www.gardeningknowhow.com/edible/fruits/peach/peach-scab-treatment.htm

The mixture is spoze to help keep the fruit from getting spotty..there'll are always brown spots on my friut and the leaves turn yellow

What is the mixture supposed to do for the tree?

COMFREY.Grow a plant cut the leaves,then cut the leaves up to small pieces then put in bucket and put anuff water to cover(submerge)the leaves,cover for 3 weeks checking on it every now and then,after 3 weeks the leaf matter breaks down and u have some great liquid fertilizer.It stinks but its a good stink