1853; Heinrich Anton de Bary, father of modern mycology, establishes that fungi are the cause, not the result, of plant diseases,[2] publishes "Untersuchungen uber die Brandpilze"
1858; Julius Kühn publishes "Die Krankheiten der Kultergewachse"[1]
1879; Robert Koch establishes germ theory: diseases are caused by microorganisms[2]
1882; Lehrbuch der Baumkrankheiten (Textbook of Diseases of Trees), by Robert Hartig, is published in Berlin, the first textbook of forest pathology.[1]
↑ Diener TO (August 1971). "Potato spindle tuber "virus". IV. A replicating, low molecular weight RNA". Virology. 45 (2): 411–28. doi:10.1016/0042-6822(71)90342-4. PMID5095900.
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