One of my Thai friends has a business selling fertilizers and weedkillers.
All the customers are interested in is killing the weeds as quickly as possible.
I was there a few weeks ago when a customer from the previous day returned to complain that the glyphosate wasn't working and didn't want to know when told it would take up to a week to see results.
He left with a barrel of paraquat because he wanted the weeds dead today.
Not many farmers here seem that interested in the consequences their farming practices have on the environment which doesn't bode well for Thailand and it's citizens.