Hostname: page-component-848d4c4894-xfwgj Total loading time: 0 Render date: 2024-06-20T22:53:45.018Z Has data issue: false hasContentIssue false

Laboratory Study on the Contact Toxicity of DDT to Ectropis crepuscularia Schiff.1

Published online by Cambridge University Press:  31 May 2012

A. P. Randall
Affiliation:
Chemical Control Section Ottawa, Ontario

Extract

An aerial spray program was conducted by the District of Kitimat, B.C. on August 1, 1960 for the control of the saddle-backed looper, Ectropis crepuscularia Schiff. An oil formulated DDT spray (1/2 pound technical DDT per U.S. gallon), was applied by aircraft at a rate of 1 gallon per acre. The results were inconclusive and raised the questions as to whether the low insect mortality counts were due to inadequate spray coverage or to the relative low susceptibility of the larvae to the DDT formulation. (Silver, 1961).

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1962

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

Busvine, J. R. 1957. Techniques for Testing Insecticides. Commonwealth Institute of Entomology, 56 Queen's Gate, London, S.W.7.Google Scholar
Silver, G. T. 1961. Notes on the chemical control of Ectropis crepuscularia Schiff. at Kitimat, B.C. Proc. Ent. Soc. B.C. 58: 1316.Google Scholar