Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 1 (1893) > Part 4, 1893; (1887) -
Document Type
Research
Abstract
Estlund, in describing the characters and work of Aphis crataegifolia Fitch, says: "Found on leaves of Crataegus corrugating them. Specimens taken during May on Crataegus tomentosa Linn, were found to curl the leaves very much, and as they turned dark brown or red they became very conspicuous.''
Publication Date
1893
Journal Title
Proceedings of the Iowa Academy of Sciences
Volume
1
Issue
Pt. 4
First Page
129
Last Page
131
Copyright
©1893 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Sirrine, F. Atwood
(1893)
"A New Species of Pemphigus Occuring on Thorn,"
Proceedings of the Iowa Academy of Science, 1(Pt. 4), 129-131.
Available at:
https://scholarworks.uni.edu/pias/vol1/iss4/44