One of the other basic reasons for allergies has been the the genetic modification of crops. They not only brought in pests as in the case of BT cotton fields but also changed the whole natural cycles around destroying the natural flora and fauna.
As Kalyani said our ancestors only used natural methods to grow crops and to destroy pests.
The other thing they did was to allow the soil to rest and replenish itself, like she pointed out they allowed cattle to graze and naturally nourish the soil with their waste. Today we have crop after crop and the soil is denuded of all nutrients and we have to resort to chemicals to grow them faster.
I agree with what Kalyani said. Why ancestors, even today in remote villages eat natural food. Why a cave man lead a healthy life ? Because he ate what nature has given. He drank water from streams sans industrial wastes unlike today.
We are much more influenced by International companies, who sold their products in India like chemical fertilizers, chemical pesticides. They first prepare good ads and then through media and television they spread their ads in all areas of our country. So people see their ads, and without the knowledge of their harmful effects farmers start using them on large scale. So our government should spread awareness about the organic pesticides and organic fertilizers.
Mafia groups, in order to promote their Agricultural products depict chemical ridden pesticides as be all and end all. This leaves a deep impact on the unsuspecting farmers.
