Copper sulphate fungicide was used first time in 1807 by –

Correct option is D

Correct option: (d) Prevost
· Prevost used copper sulphate to treat bunt of wheat, making it one of the earliest fungicidal treatments.
Other options:
· (a) Millardet – Developed Bordeaux mixture much later (1880s).
· (b) Anton de Bary – Father of Plant Pathology; studied oomycetes.
· (c) Woronin – Known for Woronin bodies in fungi.