Which is not a fungal disease

Options

A. Leaf rust of Coffee
B. Red rust of Tea
C. Rust of Wheat
D. White rust of cruciferae.

Answer

To determine which of the options is not a fungal disease, let's analyze each option step by step:

1. **Leaf Rust of Coffee**:
- This disease is caused by the fungus *Hamelia vastatrix*.
- Since it is caused by a fungus, this option is not the answer to our question.

2. **Red Rust of Tea**:
- This disease is caused by the organism *Cephaleuros*, which is classified as an alga, not a fungus.
- Therefore, this option is a potential answer to the question as it is not a fungal disease.

3. **Rust of Wheat**:
- The rust of wheat is caused by the fungus *Puccinia triticina*.
- Since this is also caused by a fungus, this option is not the answer to our question.

4. **White Rust of Crucifers**:
- This disease is caused by the fungus *Albugo candida*.
- As it is caused by a fungus, this option is also not the answer to our question.

After analyzing all the options, we conclude that the correct answer to the question "Which is not a fungal disease?" is:

**Red Rust of Tea** (caused by *Cephaleuros*, an alga).