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Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 25 (1918) > Annual Issue

 

Document Type

Research

Abstract

Damage by insects to crops is generally recognized to be of great importance. Not infrequently we see estimates of losses, but even these fail to impress most of us until some widespread insect depredation occurs, such as an outbreak of armyworms, or of white grubs. Several years ago; at the request of President Raymond A. Pearson, the writer made the following estimate of the annual losses caused by insects in Iowa.

Publication Date

1918

Journal Title

Proceedings of the Iowa Academy of Science

Volume

25

Issue

1

First Page

117

Last Page

122

Copyright

©1918 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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