Question

The Bordeaux mixture was first used for the control of _____

A Powdery mildew of pea Correct Answer Incorrect Answer
B Downey mildew of grapes Correct Answer Incorrect Answer
C Early blight of potato Correct Answer Incorrect Answer
D Phomopsis blight Correct Answer Incorrect Answer
E None of the above Correct Answer Incorrect Answer

Solution

The Bordeaux mixture fungicide (copper sulfate and lime), discovered accidentally in 1882, was used successfully against downy mildew of grapes.

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