Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-24T11:33:37.049Z Has data issue: false hasContentIssue false
  • English
  • Français

Laboratory Evaluation of DDT and Phosphamidon on the Western Hemlock Looper, Lambdina fiscellaria lugubrosa (Hulst)1

Published online by Cambridge University Press:  31 May 2012

A. P. Randall  and
C. Jackson
A. P. Randall
Affiliation:
Chemical Control Section, Ottawa, Ontario
C. Jackson
Affiliation:
Chemical Control Section, Ottawa, Ontario
Get access Rights & Permissions [Opens in a new window]

Abstract

Spray tower application of DDT in fuel oil at 0.2 lb. DDT/acre, proved to be highly toxic to the larvae of the western hemlock looper. Tolerance to DDT appeared to vary directly with larval age. Phosphamidon applied in aqueous solution to hemlock foliage showed a high order of contact and systemic toxicity to larvae placed on the treated foliage.

Type
Articles
Information
The Canadian Entomologist , Volume 95 , Issue 4 , April 1963 , pp. 365 - 371
Copyright
Copyright © Entomological Society of Canada 1963

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

Abbott, W. S. 1925. A method of computing the effectiveness of an insecticide. Jour. Econ. Ent. 18: 265–267.Google Scholar
Keen, F. P. 1938, 1952. Insect Enemies of Western Forests. U.S.D.A. Misc. Pub. No. 273.Google Scholar
Prebble, M. L., and Graham, K.. 1945. The current outbreak of defoliating insects in coast hemlock forests of British Columbia. British Columbia Lumberman, 29(2); 29(3); 29(4).Google Scholar
Randall, A. P. 1957. Plastic rearing cage for maintaining fresh conifer foliage for insect rearing. Can. Ent. 89: 448–449.CrossRefGoogle Scholar
Silver, G. T. 1960. Chemical control of loopers in Stanley Park, Vancouver, B.C. Ent. Soc. Brit. Columbia. Proc. 57: 58–60.Google Scholar
Wandenburg, D. O. 1952. A special report on current findings in conjunction with an aerial spray of DDT in oil solution for the control of hemlock looper (Lambdina fiscellaria). Pennsylvania Forests and Waters, 4: 134–138.Google Scholar