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MACROSIPHUM APHIDS INFESTING ARTEMISIA1

Published online by Cambridge University Press:  31 May 2012

George F. Knowlton  and
Merlin W. Allen
George F. Knowlton
Affiliation:
Logan, Utah.
Merlin W. Allen
Affiliation:
Logan, Utah.
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Extract

More than fifty species of aphids are already known to attack the numerous kinds of Artemisia occurring in western North America. Some aphids and their ant attendants occur in great abundance, virtually blackening the affected parts of the plants attacked. Artemisia is only one of many forage plant groups occurring in Utah which is damaged by aphids.

Type
Articles
Information
The Canadian Entomologist , Volume 70 , Issue 4 , April 1938 , pp. 73 - 83
Copyright
Copyright © Entomological Society of Canada 1938

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References

3 The writers are indebted to Proffessor M. A. Palmer and Dr. E. O. Essig for the loan of aphid material for comparisons.

* After Soliman, L. B. California University Pub. Ent. 4: 98–100 (Obtusicauda) 1927.