As reported by Maria Gallagher, in the June 26, 2002 issue of the Philadelphia Inquirer, by reading the PLU code, you can tell if the fruit was genetically modified, organically grown or produced with chemical fertilizers, fungicides, or herbicides.
Here’s how it works:
For conventionally grown fruit, (grown with chemicals inputs), the PLU code on the sticker consists of four numbers. Organically grown fruit has a five-numeral PLU prefaced by the number 9. Genetically engineered (GM) fruit has a five-numeral PLU prefaced by the number 8. For example,
A conventionally grown banana would be:
4011
An organic banana would be:
94011
A genetically engineered (GE or GMO) banana would be:
84011
http://www.plantea.com/genetically-modified-foods.htm
Not True?
http://www.huffingtonpost.com/jeffrey-smith/plu-codes-do-not-indicate_b_473088.html
Click to access cfs-shoppers-guide.pdf
Forcing GMO Food Labeling State By State
by Tom Alexander on March 31, 2011
http://www.growingedge.com/forcing-gmo-food-labeling-state-by-state