Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-24T11:48:08.707Z Has data issue: false hasContentIssue false

Resistance of Spring Wheats to the Wheat Stem Sawfly, Cephus cinctus Nort. (Hymenoptera: Cephidae): I. Resistance to the Egg1

Published online by Cambridge University Press:  31 May 2012

N. D. Holmes
Affiliation:
Research Station, Canada Department of Agriculture, Lethbridge, Alberta
L. K. Peterson
Affiliation:
Research Station, Canada Department of Agriculture, Lethbridge, Alberta

Extract

Under certain environmental conditions the resistance of wheats to the wheat stem sawfly, Cephus cinctus Nort., may be reduced or even lost. In addition, these varieties are not suitable for all of the region where the sawfly is a problem. To assist in the improvement of the presently resistant wheats, studies were begun in 1953 to determine the nature of the resistance to the sawfly. The present paper deals with the effects of various spring wheats and of different parts of the stems of these wheats on the hatching of the egg of the sawfly and presents evidence for hypotheses on the cause of these effects. Although several authors have reported on resistance to the sawfly (Ainslie, 1920; Criddle, 1915, 1922; Farstad, 1940; Farstad and Platt, 1946; Kemp, 1934; Platt et al., 1948; Roemhild, 1954; Roberts, 1954), none has dealt with the effects of the host on the egg alone.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1961

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ainslie, C. N. 1920. The western grass-stem sawfly. U.S. Dept. Agr. Bull. 841.Google Scholar
Criddle, N. 1915. The hessian-fly and the western wheat-stem sawfly in Manitoba, Saskatchewan and Alberta. Canada Dept. Agr. Ent. Branch Bull. 11.Google Scholar
Criddle, N. 1922. The western wheat-stem sawfly in Canada. Ann. Rept. Ontario Ent. Soc. 52(1921): 1822.Google Scholar
Farstad, C. W. 1940. The development of western wheat-stem sawfly (Cephus cinctus Nort.), in various hosts as an index of resistance. Iowa State Coll. J. Sci. 15: 6769.Google Scholar
Farstad, C. W., and Platt, A. W.. 1946. The reaction of barley varieties to wheat-stem sawfly attack. Sci. Agr. 26: 216224.Google Scholar
Holmes, N. D., and Peterson, L. K.. 1960. The influence of the host on oviposition by the wheat-stem sawfly, Cephus cinctus Nort. (Hymenoptera: Cephidae). Can. J. Pl. Sci., 40: 2946.CrossRefGoogle Scholar
Holmes, N. D., and Larson, Ruby I., Peterson, L. K., and MacDonald, M. D.. 1960. Influence of periodic shading on the length and solidness of the internodes of Rescue wheat. Can. J. Pl. Sci. 40: 183187.CrossRefGoogle Scholar
Kemp, H. J. 1934. Studies of solid-stemmed wheat varieties in relation to wheat-stem sawfly control. Sci. Agr. 15: 3038.Google Scholar
Platt, A. W., Farstad, C. W., and Callenbach, J. A.. 1948. The reaction of Rescue wheat to sawfly damage. Sci. Agr. 28: 154161.Google Scholar
Roberts, D. W. A. 1954. Sawfly resistance in wheat. I. Types of resistance. Can. J. Agr. Sci. 34: 582597.Google Scholar
Roemhild, G. 1954. Morphological resistance of some of the Gramineae to the wheat-stem sawfly (Cephus cinctus Nort.) M.Sc. Thesis. Montana State Coll.Google Scholar