Why Do Apples Turn Brown In The Air?

Why Do Apples Turn Brown In The Air? When an apple is cut (or bruised), oxygen is introduced into the injured plant tissue. When oxygen is present in cells, polyphenol oxidase (PPO) enzymes in the chloroplasts rapidly oxidize phenolic compounds naturally present in the apple tissues to o-quinones, colorless precursors to brown-colored secondary products. Is

How Do You Get Rid Of Black Spots On Apples?

How Do You Get Rid Of Black Spots On Apples? Spray the apple tree with lime sulfur if you want to keep your apples organic. According to the National Sustainable Agriculture Information Service, lime sulfur is considered an organic fungicide, and, according to Green Harvest, lime sulfur is effective in the treatment of black spot