All this has come about because of the sudden rise and prodigious growth of an industry for the production of man-made or synthetic chemicals with in… - Rachel Carson

Ino the course of developing agents of chemical warfare, some of the chemicals created in the laboratory were found to be lethal to insects, The discovery did not come by chance: insects were widely used to test chemicals as agents of death for man.

Man, however much he like to pretend the contrary, is part of nature.

To the bird watcher, the suburbanite who derives joy from birds in his garden, the hunter, the fisherman or the explorer of wild regions, anything that destroys the wildlife of an area for even a single year has deprived him of pleasure to which he has a legitimate right.

We must not only be concerned with what is happening to the soil; we must wonder to what extent insecticides are absorbed from contaminated soils and introduced into plant tissues. Much depends on the type of soil, the crop, and the nature and concentration of the insecticide. Soil high in organic matter releases smaller quantities of poisons than others. Carrots absorb more insecticide than any other crop studied; if the chemical used happens to be lindane, carrots actually accumulate higher concentrations than are present in the soil. In the future it may become necessary to analyze soils for insecticides before planting certain food crops. Otherwise even unsprayed crops may take up enough insecticide merely from the soil to render them unfit for market.