Which product lists chlorpyrifos as its active ingredient?

• A. Lorsban 75WG
• B. Roundup
• C. 2,4-D Amine
• D. Sevin

Answer: (A)

Identify the product that uses chlorpyrifos as its active ingredient. Chlorpyrifos is an organophosphate insecticide, so the correct product is the one specifically labeled with chlorpyrifos as its active chemical. Lorsban 75WG fits this, with chlorpyrifos listed as the active ingredient and WG denoting a water-dispersible granule formulation. The other products use different chemicals—Roundup is a glyphosate herbicide, 2,4-D Amine is a 2,4-D herbicide, and Sevin uses carbaryl as its active ingredient. So, Lorsban 75WG is the one that lists chlorpyrifos as its active ingredient.