answered about 1 month ago by grubby
Vietnam's in a funny position wrt organics; most parts are "modernized" enough that they've started using chemical pesticides and fertilizers, but not post-modern enough to have gotten "beyond" that; on the other hand if you venture further into the wilderness you can find areas where people don't use the nasties simply because they can't afford them. Many of the vegetables that Hmong farmers grow for themselves, for instance, have seen nothing more exotic than pig shit.
With large-scale crops like cotton I think it's a lot harder to find organic crops here.
Silk, though - I'm not sure where chemicals would come into that process. You wouldn't want to use pesticides since it's made by insects, and I can't see that there would be much use for fertilizers for the same reason. IANASF (I Am Not A Silk Farmer), though.
