Although the history of pest control likely began with the first human who swatted a mosquito or picked off a tick, it was not until the emergence of organized agriculture, when pests attacked the plants we grew for food and threatened our very own survival, did the battle for the control of our planet begin. Today, we have far more uses for pesticides: They are essential to the efficient use of our natural resources. The goal of this publication is to list key events in the history of pesticide development. It should serve as a framework to support other pesticide publications specific to forestry.