Name some plant diseases caused by viruses

Answer

### Step-by-Step Solution:

1. **Identify Plant Diseases Caused by Viruses**:
- The question asks for examples of plant diseases caused by viruses.

2. **Provide Examples**:
- One notable example is the **Chili Mosaic Virus**, which affects chili plants.
- Another example is the **Tobacco Mosaic Virus**, which can infect various plants, including tobacco and other crops.
- Additionally, the **Leaf Curl Virus** is another virus that causes significant damage to plants.

3. **Mention Modified Varieties**:
- In response to these viral infections, modified varieties of plants have been developed. For instance, the **Pusa Sadabahar** is a modified variety of chili that has been bred to be resistant to these viral infections.

4. **Highlight Genetic Material**:
- It is important to note that most plant viruses have RNA as their genetic material. This characteristic helps in understanding how these viruses operate and affect plant health.

### Final Answer:
Some plant diseases caused by viruses include:
- Chili Mosaic Virus (affecting chili plants)
- Tobacco Mosaic Virus (affecting a variety of plants)
- Leaf Curl Virus (affecting various crops)