Hostname: page-component-745bb68f8f-grxwn Total loading time: 0 Render date: 2025-01-10T23:54:05.926Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Temperature on Prespinning Eonymphs of the Swaine Jack-Pine Sawfly, Neodiprion swainei Midd. (Hymenoptera: Diprionidae)1

Published online by Cambridge University Press:  31 May 2012

J. G. Pilon ,
H. A. Tripp ,
J. M. McLeod  and
S. L. Ilnitzky
J. G. Pilon
Affiliation:
Forest Research Laboratory, P.O. Box 35, Sillery, Quebec
H. A. Tripp
Affiliation:
Forest Research Laboratory, P.O. Box 35, Sillery, Quebec
J. M. McLeod
Affiliation:
Forest Research Laboratory, P.O. Box 35, Sillery, Quebec
S. L. Ilnitzky
Affiliation:
Forest Research Laboratory, P.O. Box 35, Sillery, Quebec
Get access Rights & Permissions [Opens in a new window]

Abstract

Laboratory experiments at various constant temperatures indicate a theoretical threshold of about 40°F. for spinning of cocoons by eonymphal larvae of Neodiprion swainei Midd. As temperatures fall below 52.5°F. the increase in mortality and time required to spin is pronounced. The optimum temperature is estimated to be around 60°F. Field investigations for three consecutive years show a close correlation between rate of spinning and temperature. Temperature is considered as a prime factor influencing the spinning of cocoons and is possibly one of the more important factors governing the population dynamics of N. swainei in the Province of Quebec.

Type
Articles
Information
The Canadian Entomologist , Volume 96 , Issue 11 , November 1964 , pp. 1450 - 1457
Copyright
Copyright © Entomological Society of Canada 1964

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

Bucher, G. E., Cameron, J. W. MacB. and Wilkes, A.. 1948. Studies on the housefly (Musca domestica L.). II. The effects of low temperatures on laboratory reared puparia. Canad. J. Res. (D) 26: 26–56.CrossRefGoogle Scholar
Martineau, R., and Béique, R.. 1956. In Annu. Rep. For. Ins. & Disease Surv., Can. Dep. Agric., For. Biol. Div.: 31.Google Scholar
Schedl, K. E. 1939. Die Populations dynamik einiger Kanadischer Blattwespen. Verh. VII int. Kongr. Ent., Berlin (1938) 3: 2052–2104.Google Scholar
Solomon, M. E. 1957. Estimation of humidity with cobalt thiocyanate papers and permanent colour standards. Bull. ent. Res. 48: 489.CrossRefGoogle Scholar
Tripp, H. A. 1957. Studies on the general biology and natural control of the jack pine sawfly, Neodiprion swainei Mill. Annu. tech. Rep. Can. Dep. Agric., Quebec. 27 pp.Google Scholar
Tripp, H. A. Unpublished. The biology of Neodiprion swainei Midd. For. Ins. Lab., Can. Dep. For., Sault Ste. Marie, Ontario.Google Scholar
Winston, W. P., and Bates, D. H.. 1960. Saturated solutions for the control of humidity in biological research. Ecology 41: 232.CrossRefGoogle Scholar