Question

modern methods of pest control..

Answer 1

Modern pest control was stimulated by the spread across the United States of the Colorado potato beetle. After much discussion, arsenic compounds were used to control the beetle and the predicted poisoning of the human population did not occur. This led the way to a widespread acceptance of insecticides across the continent. the industrialization and mechanization of agriculture in the 18th and 19th centuries, and the introduction of the insecticides pyre-thrum and derris, chemical pest control became widespread. In the 20th century, the discovery of several synthetic insecticides, such as DDT, and herbicides boosted this development.