What does 'LD' stand for in pesticide terminology?

In pesticide terminology, 'LD' stands for Lethal Dose. This term refers to the amount of a substance, such as a pesticide, that is sufficient to cause death in a specific percentage of a test population, typically expressed as LD50 (the dose required to kill 50% of the test subjects). Understanding this concept is crucial for assessing toxicity levels and determining safe handling practices, as it helps professionals evaluate the risks associated with pesticide applications and make informed decisions regarding their use. The lethal dose metric is essential for regulatory purposes and ensuring that pesticide products are used safely and responsibly to minimize harm to humans, animals, and the environment.