Insecticide pyrethrum is obtained from

Options

A. Artemesia
B. Tragapogon
C. Chrysanthemum
D. Carthamus.

Answer

To answer the question "Insecticide pyrethrum is obtained from," we can follow these steps:

### Step 1: Understand the Question
The question is asking for the source of the insecticide pyrethrum. We need to identify which plant it is derived from among the given options.

### Step 2: Analyze the Options
The options provided are:
- Artemisia
- Tragopogon
- Chrysanthemum
- Carthamus

### Step 3: Recall Information About Pyrethrum
Pyrethrum is known to be a natural insecticide. It is derived from certain flowers and is effective in killing insects by affecting their central nervous system.

### Step 4: Identify the Correct Plant Source
From prior knowledge, we know that pyrethrum is specifically obtained from the flowers of the Chrysanthemum plant. The active compounds responsible for its insecticidal properties are known as pyrethrins, which are secreted from these flowers.

### Step 5: Eliminate Incorrect Options
- **Artemisia**: This is an herb, not known for producing pyrethrum.
- **Tragopogon**: This is also not associated with pyrethrum production.
- **Carthamus**: While this is a flowering plant, it does not produce pyrethrum.

### Step 6: Confirm the Correct Answer
Since Chrysanthemum is the only option that is known to produce pyrethrum, we can confidently conclude that the correct answer is:

**Chrysanthemum**

### Final Answer
Insecticide pyrethrum is obtained from **Chrysanthemum**.

---