Chick pea is being grown in area where bacterial blight is common. What measurus (a-d) should be taken
(a) Spraying Bordeaux mixture
(b) Controlling Bordeaux mixture
(C) Controlling insect or vector of pathogen
(d) use seeds of disease resistant variety

Options

A. III and IV
B. I and IV
C. II and III
D. I and II

Explanation

To address the issue of bacterial blight in chickpeas, we need to evaluate the options provided and determine the most effective measures to take. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding Bacterial Blight**:
- Bacterial blight in chickpeas is caused by the pathogen *Pseudomonas syringae*. It leads to symptoms such as pale green spots, water-soaked lesions, and eventually dry dead spots on the leaves.

2. **Evaluating Option (a) - Spraying Bordeaux Mixture**:
- Bordeaux mixture is a fungicide and may not be effective against bacterial infections. Therefore, this option is not sufficient to control bacterial blight.

3. **Evaluating Option (b) - Controlling Bordeaux Mixture**:
- This option seems to be incorrectly phrased. Controlling the use of Bordeaux mixture does not contribute to managing bacterial blight, making this option irrelevant.

4. **Evaluating Option (c) - Controlling Insect or Vector of Pathogen**:
- Insects or vectors can spread pathogens, including bacteria. Controlling these vectors can help reduce the incidence of bacterial blight. This is a valid measure to take.

5. **Evaluating Option (d) - Use Seeds of Disease Resistant Variety**:
- Using disease-resistant varieties is one of the most effective strategies to prevent bacterial blight. This option is also valid.

6. **Conclusion**:
- The most effective measures to take against bacterial blight in chickpeas are:
- (c) Controlling insect or vector of pathogen
- (d) Use seeds of disease resistant variety

### Final Answer:
The correct measures to take are (c) Controlling insect or vector of pathogen and (d) Use seeds of disease resistant variety.

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