Pyrethrins and pyrethroids are which type of pesticide?

Pyrethrins and pyrethroids are which type of pesticide?

• A. Fungicide
• B. Bactericide
• C. Insecticide
• D. Herbicide

Answer: (C)

Pyrethrins and pyrethroids are insecticides because they’re used to kill insects by targeting their nervous system. They work by affecting voltage-gated sodium channels in insect nerves, keeping them open longer, which causes rapid nerve firing, paralysis, and death. Pyrethrins are natural compounds from chrysanthemum flowers, while pyrethroids are synthetic versions designed to be more stable and potent. They are not fungicides, bactericides, or herbicides, which attack fungi, bacteria, or plants respectively. These chemicals provide quick knockdown and generally have relatively low mammalian toxicity, but they can impact aquatic life and bees, and pests can develop resistance with ongoing use.

Pyrethrins and pyrethroids are insecticides because they’re used to kill insects by targeting their nervous system. They work by affecting voltage-gated sodium channels in insect nerves, keeping them open longer, which causes rapid nerve firing, paralysis, and death. Pyrethrins are natural compounds from chrysanthemum flowers, while pyrethroids are synthetic versions designed to be more stable and potent. They are not fungicides, bactericides, or herbicides, which attack fungi, bacteria, or plants respectively. These chemicals provide quick knockdown and generally have relatively low mammalian toxicity, but they can impact aquatic life and bees, and pests can develop resistance with ongoing use.