What does LC50 stand for in pesticide terminology?

LC50 stands for Lethal Concentration 50%. It is a critical measure in toxicology that indicates the concentration of a substance, such as a pesticide, that is required to kill 50% of a test population within a specified period. This statistic is crucial for understanding the relative toxicity of different pesticides and their potential impact on non-target organisms, including humans, wildlife, and beneficial insects.

Understanding LC50 helps applicators and regulatory authorities assess the risks associated with pesticide use, guiding decisions on application rates and methods to maximize effectiveness while minimizing harm. The concept underlines the importance of precise measurements in chemical application and risk assessment, as higher concentrations could lead to significant ecological and health consequences.