Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-25T06:48:10.907Z Has data issue: false hasContentIssue false
  • English
  • Français

OVIPOSITION BY NABIS ALTERNATUS (HEMIPTERA: NABIDAE) IN ALFALFA

Published online by Cambridge University Press:  31 May 2012

L. A. Richards  and
A.M. Harper
L. A. Richards
Affiliation:
Research Station, Agriculture Canada, Lethbridge, Alberta T1J 4B1
A.M. Harper
Affiliation:
Research Station, Agriculture Canada, Lethbridge, Alberta T1J 4B1
Get access Rights & Permissions [Opens in a new window]

Abstract

The eggs of Nabis alternatus Parshley, which are laid in the stems of alfalfa plants, can be identified by their opercula, which protrude from the stem. Most eggs were laid in the upper portion of the main stem where the mean widths of the stems were 1.5 to 1.7 mm, and the hardness averaged 7.4 kg. The mean and minimum heights of oviposition increased with increasing total height of stem and the number of eggs laid also increased. Eggs laid in alfalfa stems that were subsequently allowed to dry had low percentage hatch.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 12 , December 1978 , pp. 1359 - 1362
Copyright
Copyright © Entomological Society of Canada 1978

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

Harris, H. M. 1928. A monographic study of the hemipterous family Nabidae as it occurs in North America. Entomologica am. 9: 1–97.Google Scholar
Knowlton, S. F. 1943. Nabis alternatus feeding observations. Bull. Brooklyn ent. Soc. 38: 122.Google Scholar
Perkins, P. V. and Watson, T. F.. 1972. Biology of Nabis alternatus (Hemiptera: Nabidae). Ann. ent. Soc. Am. 65: 54–57.CrossRefGoogle Scholar
Pimentel, D. and Wheeler, A. G. Jr., 1973. Species and diversity of arthropods in the alfalfa community. Environ. Ent. 2: 659–668.CrossRefGoogle Scholar
Rakickas, R. J. and Watson, T. F.. 1974. Population trends of Lygus spp. and selected predators in strip cut alfalfa. Environ. Ent. 3: 781–784.CrossRefGoogle Scholar
Summers, C. G. 1976. Population fluctuations of selected arthropods in alfalfa: Influence of two harvesting practices. Environ. Ent. 5: 103–110.CrossRefGoogle Scholar
Taylor, E. J. 1949. A life history study of Nabis alternatus. J. econ. Ent. 49: 991.CrossRefGoogle Scholar
Voisey, P. W., MacDonald, D. C., Kloek, M., and Foster, W.. 1972. The Ottawa texture measuring system: An operational manual. Agric. Can. Engng Spec. 7024. 106 pp.Google Scholar