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Vitamins

Bordeaux mixt...

Question

Bordeaux mixture is first successfully used against which of the following diseases?

A

Powdery mildew of mung bean

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B

Black rot of crucifers

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C

Downy Mildew of Grapes

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D

Late blight of potato

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Solution

The correct option is C Downy Mildew of Grapes
Bordeaux mixture is a copper-based most commonly used fungicide and bactericide used for controlling plant diseases. Its first successful use was against Downy Mildew of Grapes which is a fungal disease. It is caused due to Plasmopara viticola.

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Q. Consider the following four measures (A-D) that could be taken to successfully grow chickpea in an area, where bacterial blight disease is common.
A. Spray with Bordeaux mixture.
B. Control of the insect vector of the disease pathogen.
C. Use of only disease free seeds.
D. Use of varieties resistant to the disease.

Which two of the above measures can control the disease?

Consider the following four measures (a-d) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common.
a) Spray with Bordeaux mixture
b) Control of the insect vector of the disease pathogen
c) Use of only disease-free seeds
d) Use of varieties resistant to the disease

Which two of the above measures can control the disease?

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Q. Bordeaux used as a fungicide is a mixture of:

Q. 'Bordeaux mixture' is used as a fungicide. It is a mixture of:

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