Which insecticide is produced from extracts of the chrysanthemum?

Which insecticide is produced from extracts of the chrysanthemum?

• A. Pyrethrins
• B. Pyrethroids
• C. Malathion
• D. Permethrin

Answer: (A)

Natural insecticides obtained from chrysanthemum extracts are pyrethrins. Pyrethrins come from chrysanthemum flowers and disrupt the insect nervous system by prolonging the opening of sodium channels, causing rapid paralysis and death; they also break down quickly in the environment, reducing long-term non-target risk. The other terms refer to different things: pyrethroids and permethrin are synthetic relatives designed for greater stability, not direct chrysanthemum extracts, and malathion is an organophosphate with a separate origin and mechanism. So the chrysanthemum-derived option is pyrethrins.

Natural insecticides obtained from chrysanthemum extracts are pyrethrins. Pyrethrins come from chrysanthemum flowers and disrupt the insect nervous system by prolonging the opening of sodium channels, causing rapid paralysis and death; they also break down quickly in the environment, reducing long-term non-target risk. The other terms refer to different things: pyrethroids and permethrin are synthetic relatives designed for greater stability, not direct chrysanthemum extracts, and malathion is an organophosphate with a separate origin and mechanism. So the chrysanthemum-derived option is pyrethrins.