LC50 and LD50 are used to compare which across pesticides?

• A. Hazard & toxicity
• B. Death
• C. Different product's toxicity
• D. Different product's formulation

Answer: (A)

LC50 and LD50 provide a standard measure of acute toxicity by showing the dose or concentration that kills 50% of a test population. This lets you rank how potent each pesticide is and, in turn, compare the hazard they pose under exposure. A lower LD50 or LC50 means greater toxicity, so these metrics are tools for comparing toxicity (and hazard) across pesticides. They aren’t a tally of real-world deaths or about how a product is formulated, but a potency benchmark used to evaluate relative danger among products.