carpet is like clothes they have preservatives in it, dyes, and chemicals that they use to make the carpet stain and water resistant. im not saying it doesn't work im saying theri is better alternitves, the used carpet could have been in a meth house that is now full of traces of meth, it could have also been from some nasty house that cats and dogs piss and shit on and now in a garden.
not saying it is this but always what could happen.
im not arguing or anything either just my opinions.
back to the berries.
im spraying all mine down today with neem as i have aphids in the GH. need to get them ready to sell