True or False: Low toxicity is indicated by a low LD50.

The statement "Low toxicity is indicated by a low LD50" is indeed false. LD50, which stands for "lethal dose for 50% of the test population," is a common measure used to assess the acute toxicity of a substance, including pesticides. A low LD50 value indicates that the substance is more toxic because a smaller amount is required to reach the lethal dose for half of the test subjects. Conversely, a high LD50 value suggests lower toxicity, as it would take a larger amount of the substance to reach the same lethal effect.

Understanding this concept is crucial for anyone working with pesticides, as it helps in making informed decisions regarding safe application, handling, and overall management of pesticide risks. In this context, low toxicity is linked to a high LD50, not the other way around.