According to FDA (Food and Drug Administration), It is safe to eat the stickers that supermarkets use on fruit, which are completely edible. Even the glue holding the stickers to the fruits is food grade.
Codes mention on the stickers have some meaning Â
Label’s code starting with 9 denotes Organic, starting with 8 denotes GMO (Genetically modified), starting with 3 or 4 denotes conventionally grown contains pesticides (But very Low / not harmful).