History of plant diseases:
Beginnings of modern plant pathology, conformation of Prevost’s work.Contribution
of following plant pathologists to plant pathology: Anton De Bary, Kuhn, Woronin, S.
D. Garrett, J. G. Horsefall, K.C. Mehta, T. S. Sadavasivan, M. J. Trimulachari and A.
Mahadevan.
Plant pathology in 20th century.