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

Question

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?

Accepted Answer

3 and 4. Bacterial blight in chickpea is best managed by preventing introduction of the bacterium and by reducing plant susceptibility. Using disease-free seed and resistant varieties directly address those two points, so they are the most effective pair.

Solution

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