Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-24T16:38:34.993Z Has data issue: false hasContentIssue false
  • English
  • Français

Control of a Spruce Budworm Outbreak in Quebec through Aerial Spraying Operations1

Published online by Cambridge University Press:  31 May 2012

J. R. Blais
J. R. Blais
Affiliation:
Forest Research Laboratory, P.O. Box 35, Sillery, Quebec
Get access Rights & Permissions [Opens in a new window]

Abstract

An attempt was made to suppress an incipient spruce budworm outbreak in the Lower St. Lawrence region of Quebec through the aerial application of DDT. Operations began in 1960 and continued in 1961 and 1962 when they finally met with success. Failure to achieve success earlier was due partly to the exceptionally favourable survival conditions for the insect in 1960, and partly to the inadvertent omission of a small infested area from the program in 1961. The operations greatly reduced spruce budworm populations each year in the outbreak area, while the action of natural control factors, including parasites and predators increased. The collapse of the outbreak was the result of the combined effects of the chemical treatments and of natural control factors.

Type
Articles
Information
The Canadian Entomologist , Volume 95 , Issue 8 , August 1963 , pp. 821 - 827
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

Blais, J. R. 1960. Spruce budworm parasite investigations in the Lower St. Lawrence and Gaspé regions of Quebec. Canad. Ent. 92: 384–396.CrossRefGoogle Scholar
Blais, J. R. 1961. Aerial application of insecticides and the suppression of incipient spruce budworm outbreaks. For. Chron. 37: 203–210.CrossRefGoogle Scholar
Blais, J. R., and Martineau, R.. 1960. A recent spruce budworm outbreak in the Lower St. Lawrence and Gaspé Peninsula with reference to aerial spraying operations. For. Chron. 36: 209–224.CrossRefGoogle Scholar
McGugan, B. M., and Blais, J. R.. 1959. Spruce budworm parasite studies in northwestern Ontario. Canad. Ent. 91: 758–783.CrossRefGoogle Scholar
Morris, R. F. 1954. A sequential sampling technique for spruce budworm egg surveys. Canad. J. Zool. 32: 302–313.CrossRefGoogle Scholar
Webb, F. E., Blais, J. R., and Nash, R. W.. 1961. A cartographic history of spruce budworm outbreaks and aerial forest spraying in the Atlantic region of North America, 1949-1959. Canad. Ent. 93: 360–379.CrossRefGoogle Scholar
Webb, F. E., Macdonald, D. R., and Cameron, D. G.. 1959. Aerial spraying against spruce budworm in New Brunswick – 1958. Canad. Dept. Agr., For. Biol. Div., Bi-Mon. Prog. Rept. 15: 1–2.Google Scholar