Pyrethrin is extracted from

Options

A. Azadirachta indica
B. Helianthus annuus
C. Poa indica
D. Chrysanthemum cinerarifolium

Answer

**Step-by-Step Solution:**

1. **Identify the Compound**: The question asks about pyrethrin, which is a natural insecticide.

2. **Source of Pyrethrin**: Pyrethrin is extracted from a specific plant. The plant from which pyrethrin is derived is known as *Chrysanthemum cinerariifolium*.

3. **Characteristics of the Plant**: *Chrysanthemum cinerariifolium* is a flowering plant, commonly recognized for its ornamental value and its role in producing pyrethrin.

4. **Function of Pyrethrin**: Pyrethrin acts as an insecticide by affecting the nervous system of insects. It causes a breakdown in their nervous system, leading to paralysis and ultimately death.

5. **Commercial Use**: Due to its effectiveness, pyrethrin is widely used in the agricultural industry for pest control.

6. **Final Answer**: Therefore, the correct answer to the question is that pyrethrin is extracted from *Chrysanthemum cinerariifolium*.

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