How can Bt crops reduce the use of broad-spectrum insecticides?

Bt crops reduce the reliance on broad-spectrum insecticides by inherently producing proteins that are toxic to specific insect pests, allowing the plants to defend themselves without the need for external chemical applications.1

Unlike conventional broad-spectrum insecticides, which often harm both pests and beneficial organisms—such as pollinators and natural insect enemies—the proteins produced by Bt crops target a narrow range of species. Because these crops provide built-in protection, farmers can significantly decrease their use of synthetic chemical sprays. For instance, the introduction of Bt corn led to a reduction of approximately one-third in the application of conventional pesticides previously recommended for controlling the European corn borer.1

By integrating these genetically modified varieties into agricultural practices, farmers can achieve effective pest management while minimizing the environmental impact associated with the widespread use of highly toxic and expensive chemical insecticides.1