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Document Type

Research

Abstract

It is important in a study of plant diseases to understand the causes of wide-spread epidemics; notes on the prevalence of diseases, and their seasonal and geographical distribution, are an aid to this knowledge.

Publication Date

1909

Journal Title

Proceedings of the Iowa Academy of Science

Volume

16

Issue

1

First Page

41

Last Page

97

Copyright

©1909 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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