Which one of the following is a systematic insecticide?

Options

A. Malathion
B. Parathion
C. Endrin
D. Furadan

Answer

To determine which of the following options is a systematic insecticide, we can follow these steps:

### Step 1: Understand the term "systematic insecticide"
Systematic insecticides are chemicals that are absorbed by plants and then transported throughout the plant's tissues. This means that when insects feed on the plant, they ingest the insecticide, which kills them.

### Step 2: Analyze the options
The options given are:
- Malathion
- Parathion
- Andrine
- Furadane

### Step 3: Identify the nature of each option
1. **Malathion**: This is an organophosphate insecticide that is primarily used for its contact and stomach poison properties. It is not considered a systematic insecticide.

2. **Parathion**: This is also an organophosphate insecticide, and while it has systemic properties, it is more commonly known for its contact action and is highly toxic.

3. **Andrine**: This is not commonly recognized as a systematic insecticide. It is not widely used in agriculture.

4. **Furadane**: This is a carbamate insecticide that is known for its systemic properties. It can be absorbed by plants and is effective against a variety of pests.

### Step 4: Conclusion
Based on the analysis, the correct answer is **Furadane**, as it is recognized as a systematic insecticide.

---