Forty million dollars is the estimated loss annually to the United States on account of weeds, according to Prof. Beal, member of the Department of Agriculture. That a generous share of this loss belongs to Iowa we must all admit, for Iowa is a great agricultural state. Since such is the case it would not seem at all strange if Iowa people should take steps to make this loss as small as possible.
Proceedings of the Iowa Academy of Science
©1913 Iowa Academy of Science, Inc.
"Helpful and Harmful Iowa Birds,"
Proceedings of the Iowa Academy of Science, 20(1), 295-298.
Available at: https://scholarworks.uni.edu/pias/vol20/iss1/34