If you look closely, even the sale of pesticide would not be regulated in the area of cultivation, crop etc. Again here the retailers in this business want to have good sales and profit, hence no questions asked.
Can the government implement strict guidelines, yes but where is the money and resources to strengthen this supervision process that would lead to less use of pesticides.
It is like a chain of errors that have led to indiscriminate overuse of these chemicals that harm everyone in the food chain, right from the farmers to the end consumers.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease