I had a few in ground banana peppers exibit this staining or stripes shown in the photo below last year. I didn't eat the peppers that had the stains.
This year I have 22 plants in a different location this year and they are doing fine. The plant in the photo is an experiment where I planted it into a pot. Granted the pot is probably small but I have three other plants in larger containers but no peppers on them yet as they were planted later.
[url=https://i146.photobucket.com/albums/r280/mikegt777/Misc/DSCN1657.jpg?t=1307793460]Stains on pepper plants.[/url]
What is causing the staining and are they ok to consume?