Consider the following four measures (a-d) that could be

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Consider the following four measures (a-d) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common
(1) Spray with Bordeaux mixture
(2) Control of the insect vector of the disease pathogen
(3) Use of only disease-free seeds
(4) Use of varieties resistant to the disease
Which two of the above measures can control the disease?

1. 2 and 3
2. 1 and 2
3. 3 and 4
4. 1 and 4

Correct Option: C

Use of only disease free seeds and use of disease resistant varieties are the most important control measures that could be taken to successfully grow chickpea in an area where bacterial blight disease is common.