Do all pesticides kill only the target pests? True or False?

The assertion that all pesticides kill only the target pests is false. Pesticides are designed to control specific pests, but they can also have non-target effects, meaning they may harm beneficial insects, plants, and microorganisms if not used properly. This is especially true if the pesticide is applied inappropriately, at excessive rates, or during periods when non-target organisms are present.

Moreover, the chemical properties and biological activity of a pesticide determine its selectivity. Some pesticides may act broadly and impact a wide range of organisms, while others may be more specific but still not limited to the intended targets. Therefore, it is important for applicators to understand not only the intended target pest but also the potential impact on the environment and non-target species.

Correct usage, understanding of the active ingredients, and application methods can mitigate the risk of harming non-target organisms, but it does not guarantee complete safety for all life forms. Thus, the claim that all pesticides kill only the target pests is an oversimplification of how pesticides function in real-world applications.