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Food Relations of the Wheat Stem Sawfly, Cephus cinctus Nort. (Hymenoptera: Cephidae)1

Published online by Cambridge University Press:  31 May 2012

N. D. Holmes
N. D. Holmes
Affiliation:
Field Crop Insect Section, Science Service Laboratory, Lethbridge, Alberta
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Extract

It has been shown by Farstad (1940) and Platt (1946, 1948) that resistance in wheat to the wheat stem sawfly, Cephus cinctus Nort., is positively correlated with solidness of stem. Under certain environmental conditions the resistant variety Rescue becomes susceptible to sawfly damage. The nature of this resistance is unknown, but a study of the nutritional requirements of C. cinctus may reveal it and perhaps assist in the development of new resistant varieties. The preliminary phases of this project were conducted with the following objectives: to studv the anatomy of the larval organs of ingestion and digestion; to determine the plant tissues ingested by the larva; and to study the hydrolytic enzymes present in feeding larvae.

Type
Articles
Information
The Canadian Entomologist , Volume 86 , Issue 4 , April 1954 , pp. 159 - 167
Copyright
Copyright © Entomological Society of Canada 1954

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References

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