GMO and PLU code

With the rise of genetically modified organisms (GMOs) - particularly soy, corn, and tomatoes - here's how to know what you're really getting in the produce aisle: Start by looking at the PLU code. GMO fruit PLU codes have numbers that begin with the number 8, whereas organically grown fruit PLUs have five numbers beginning with 9. Non-GMO, non-organic fruit PLUs have only four numbers. - from deliciousliving.com