- Parker, K. G., P. A. Readio, L. J. Tyler, and D. L. Collins. 1941. Transmission of the Dutch elm disease pathogen by Scolytus multistriatus and the development of infection . Phytopathology 31:657-663.
- Readio, P. A. 1935. The entomological phases of the Dutch elm disease. Journal of Economic Entomology 28:341-353, 2 figs.
- Welch, D. S., W. H. Rankin, and P. A. Readio. 1945. Dutch elm disease control. Cornell University Extension Service, Bulletin 687. 15 p.