Which insecticide is derived from the chrysanthemum plant?

Which insecticide is derived from the chrysanthemum plant?

• A. Pyrethrins
• B. Pyrethroids
• C. Neonicotinoids
• D. Organochlorines

Answer: (A)

Natural insecticides derived from chrysanthemum plants are pyrethrins. They’re extracted from Chrysanthemum flowers and used for their rapid knock-down of many pests. Pyrethrins work by affecting the insect nervous system, keeping sodium channels open and causing overexcitation that leads to quick paralysis. They degrade quickly in sunlight and tend to have low mammalian toxicity, which makes them popular in some settings. The other options are not derived from chrysanthemum: pyrethroids are synthetic, designed to be more persistent; neonicotinoids act on nicotinic receptors in insects; organochlorines are an older, distinct class not related to chrysanthemum chemistry.

Natural insecticides derived from chrysanthemum plants are pyrethrins. They’re extracted from Chrysanthemum flowers and used for their rapid knock-down of many pests. Pyrethrins work by affecting the insect nervous system, keeping sodium channels open and causing overexcitation that leads to quick paralysis. They degrade quickly in sunlight and tend to have low mammalian toxicity, which makes them popular in some settings. The other options are not derived from chrysanthemum: pyrethroids are synthetic, designed to be more persistent; neonicotinoids act on nicotinic receptors in insects; organochlorines are an older, distinct class not related to chrysanthemum chemistry.