"In our contracts, we banned DDT, Aldrin, Endrin, 2,4-D, 2,4-T, Tep and many of the other-Monitor 4-many of these other pesticides. We banned these pesticides in our contracts starting from 1970. It is interesting that just recently, the government has come out against Aldrin and Endrin. And the Farm Workers Union banned these pesticides many years ago. We find that the only way that you can be sure that the so-called laws are administered, that the so-called laws are carried out, is when you have somebody right there on the ranch, a steward, a ranch committee, somebody that can't get fired from the job, somebody that has the protection of a union contract to make sure that these things are carried out."
January 1, 1970
https://en.wikiquote.org/wiki/Dolores_Huerta