HI
I think the farmers should harvest those pink snail eggs and sell them as pink caviar. I recently made an article on snails eggs and they fetch around 1,800 e per kilo. That is a very good price I think you will agree. They call it
"white caviar".
So your pink caviar would fetch similar prices no doubt so turn a pest into a high profit/return business and farm those snail eggs.
Here is my post on the subject,
https://steemit.com/photography/@sallybeth23/white-caviar-fetches-the-highest-price