One thing you can be sure of in 1964: Plant diseases will hit some of Iowa's fields and gardens. As always, weather will have great influence. Here's a rundown on 1963 plant disease problems and a look ahead at '64.
Lambe, Robert C.
"Plant Disease Outlook for 1964,"
Iowa Farm Science: Vol. 18
, Article 9.
Available at: https://lib.dr.iastate.edu/farmscience/vol18/iss7/9