Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 69 (1962) > Annual Issue
Document Type
Research
Abstract
Cultural studies were made of 348 bur oak branches inoculated with white and gray isolates of Ceratocystis fagacearum at diametrically opposed loci. Approximately 15 per cent of the branches developed foliar symptoms of oak wilt, yielded C. fagacearum, or both. More than one-third of the visibly diseased branches did not yield this fungus. Part of the failures were attributed to competition from other fungi and bacteria, isolated commonly from wood of both inoculated and uninoculated branches. No branches yielded both isolates of the pathogen. Distribution of the two isolates among trees indicated preferential susceptibility of the host may contribute to the apparent competition in vivo among isolates of C. fagacearum.
Publication Date
1962
Journal Title
Proceedings of the Iowa Academy of Science
Volume
69
Issue
1
First Page
122
Last Page
127
Copyright
©1962 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Marchetti, M. A.
(1962)
"Infection of Quercus Macrocarpa by White and Gray Isolates of Ceratocystis Fagacearum,"
Proceedings of the Iowa Academy of Science, 69(1), 122-127.
Available at:
https://scholarworks.uni.edu/pias/vol69/iss1/18