Two hundred and eighty-six abnormal, field collected larvae of the European corn borer were examined for the presence of microorganisms which could have caused the abnormality or death. The most common microorganism found was a microsporidian, Perezia pyraustae Paillot. Next most numerous was a group of enterobacteria. Spore forming rods apparently of the genus Bacillus, and fungi belonging to the genera Beauvaria and Metarrhizium were also isolated. An examination of 100 apparently normal pupae revealed that 82 were hosts to Perezia pyraustae and two contained bacteria.
Proceedings of the Iowa Academy of Science
©1959 Iowa Academy of Science, Inc.
Raun, Earle S.; Lockhart, William R.; and Beers, Russell J.
"Microorganisms Found in Field Specimens Of Diseased Corn Borer Larvae,"
Proceedings of the Iowa Academy of Science, 66(1), 508-512.
Available at: https://scholarworks.uni.edu/pias/vol66/iss1/69